Andy Reid, Darron Gibson and Anthony Stokes have been recalled from the international wilderness after Giovanni Trapattoni's departure as Republic of Ireland boss, but Robbie Brady will play no part in October's World Cup qualifiers due to a groin injury.
In-form Hull winger Brady will undergo an operation on Tuesday after a scan on Monday evening ruled him out of the double header against Germany and Kazakhstan, the Football Association of Ireland confirmed in a statement.
Reid, Gibson and Stokes, along with Wolves striker Kevin Doyle, could all feature, though, after being included in interim manager Noel King's squad.
Nottingham Forest midfielder Reid was eventually discarded by Trapattoni after the pair clashed at the team hotel in the wake of a 2-1 World Cup qualifier victory over Georgia in September 2008.
Celtic frontman Stokes was similarly ostracised when he pulled out of a Carling Nations Cup game in May 2011 citing fatigue, while Doyle, once a favourite of the 74-year-old Italian, lost his place as his confidence dipped along with club Wolves' fortunes.
Gibson's exile was self-imposed after he was left sitting on the bench for the entire Euro 2012 finals campaign in Poland, although he revealed earlier this month that he would make himself available once again after Trapattoni's exit.
Midfielder Stephen Ireland has indicated his willingness to return too, but not until he has re-established himself in club football following his loan move to Stoke.
The players begin their preparations in Malahide today and King, who has stepped up from his role as Under-21s manager, is relishing the opportunity to work with them.
He said: "I spoke to a lot of the players over the past week and everyone is looking forward to coming in.
"Playing against the third-ranked team in the world is always going to be a big challenge, but it is the sort that every player wants to be a part of.
"It is a natural ambition to try to win every game and these two games should be no different.
"There are always difficulties in achieving victories, but our 10 days in camp will be spent working together with a focus on doing so.
"It is an honour to be working with the players and having the opportunity to manage the senior team against Germany and Kazakhstan is a huge source of pride for me and my family."
King named a 26-man party for the two games - prior to Brady's withdrawal - although he has a further injury doubt over Stoke striker Jon Walters, who also has a groin problem.
Central defenders Richard Dunne and John O'Shea are both suspended for the Germany game in Cologne on 11 October, but will return to the squad for the home clash with Kazakhstan four days later.
While King's temporary appointment has seen Reid, Gibson, Stokes and Doyle return to the fold, there are no places for regulars Darren O'Dea, David Meyler, Simon Cox or Conor Sammon.
Ireland currently sit in fourth place in Group C with a purely mathematical chance of making it to Brazil next summer after costly defeats by Sweden and Austria last month.
That proved fatal for Trapattoni, who guided the side to within a controversial play-off defeat by France of the 2010 World Cup finals and then took them to Euro 2012.
However, concerns over his conservatism came to a head after a 6-1 home drubbing by the Germans in October last year and although he survived showdown talks with the FAI on that occasion, last month's events sealed his fate.
Martin O'Neill was swiftly installed as favourite to replace the veteran, but the FAI announced last week that King would hold the fort while former international Ray Houghton and high performance director Ruud Dokter carry out a comprehensive assessment of the managerial market in an attempt to identify the best man for the job.
Republic of Ireland squad to face Germany and Kazakhstan in the upcoming World Cup Europe Group C qualifiers:
David Forde (Millwall), Keiren Westwood (Sunderland), Darren Randolph (Birmingham), Joey O'Brien (West Ham), Sean St Ledger (Leicester), Marc Wilson (Stoke), Seamus Coleman (Everton), Stephen Kelly (Reading), Ciaran Clark (Aston Villa), Paul McShane (Hull), Darron Gibson (Everton), Glenn Whelan (Stoke), James McCarthy (Everton), Paul Green (Leeds), Andy Reid (Nottingham Forest), Aiden McGeady (Spartak Moscow), Anthony Pilkington (Norwich), James McClean (Wigan), Stephen Quinn (Hull), Wes Hoolahan (Norwich), Shane Long (West Brom), Robbie Keane (LA Galaxy), Jon Walters (Stoke), Kevin Doyle (Wolves), Anthony Stokes (Celtic).
Live television coverage of both FAI Ford Cup semi-finals from 13:30 on Sunday 6 October on RTÉ Two and RTÉ.ie (Worldwide excluding GB & NI). Highlights and analysis of all the weekend’s action on MNS from 7pm on Monday 7 October on RTÉ Two and RTÉ.ie (Worldwide).