Irbe and Ozolins are definitely out. Ozolins had a horrible season with the Rangers this year before being put on waivers and sent to the AHL, where he didn't report due to an injury. Either way, he announced his retirement from the national team last year, and didn't play at last years WC. Irbe likewise had a horrible season. He started off by playing for Riga20, the national junior teams local development team. He let in about 5 goals a game on average and then wasn't heard from for several months, until he ended up in Slovakia, where he was just as awful and released after 6 or 7 games.
Of the current NHLers, the Kings Raitis Ivanans has agreed to play, but his participation depends on whether or not he can get a permanent residency hearing delayed, which apparently is looking likely. Although not an offensive powerhouse, he did get 8 points (4g/4a) playing on average 4-6 minutes for most of the season. His main plus is his size, which Latvia seriously lacks.
Janis Sprukts, who's been going back and forth between Florida of the NHL and Rochester of the AHL will no doubt go, provided Rochester is kicked out of the playoffs in time. He was their teams leading scorer prior to being called up to finish the season in Florida, and will no doubt be called back once it's up. A huge loss to Latvia, at least for the beginning.
Karlis Skrastins, the NHL's new defensive iron man will be there (although the Av's still do have an outside chance of getting the last playoff spot).
Peter Skudra (who played many NHL seasons with Boston, Pittsburgh and Vancouver before bolting for more $ in the Russian Superleague) will be making his return to the national team for the first time in ten years. He's already practicing with the team in Riga.
As for other AHL players, Martins Karsums of the Providence Bruins, Jekabs Redlihs of the Syracuse Crunch and Kaspars Daugavins of the Binghamton Senators/Toronto St.Michaels Majors are all expected to be on the team, or at least receive tryouts once the AHL regular season wraps up next weekend.
There are plenty of other former NHL/AHL players who should be on the team, including Herbert Vasiljevs (Atlanta and Vancouver), Viktors Ignatievs (Tampa and Carolina), Armands Berzins (Minnesota draft pick), Juris Stals (Hartford Wolfpack), Agris Saviels (Hershey Bears), Krisjanis Redlihs (Albany Riverrats) and Lauris Darzins (Predators pick).
Oskars Bartulis, who's a leading CHL defenseman, and signed by the Flyers, is also tied up in playoff action and will only make it if his season ends early.