This is more or less what's been talked about here since the thread was made.
Right now, we know of three, maybe four established NHLers (Jokiharju, Armia, Ristolainen, Ruotsalainen) who won't make the playoffs and have expressed interest. Perhaps there are other 3-4 we're eyeing as potential additions (Donskoi, Laine, Lammikko, Kuokkanen), but whose stances we don't know yet. However, conventional wisdom states that the turnout of the players theoretically available is rarely 100%.
Finally, there's a bunch of players who are presently in the NHL but haven't fully established themselves yet (such as Maccelli, Thomson, Borgström and Hatakka), and it's anybody's guess if the coach would be interested in handing any of them a direct invite, is perhaps thinking about checking them out on EHT, or simply figures they aren't upgrades over his euro familiars.
Overall, I think this team will feature around 5-8 NHLers when all is said and done - 4-5 will be there from the get-go, and 2-3 might join as late additions after the first round. The rest will almost exclusively be returnees from the olympic team, with perhaps 1-2 left field picks from euro leagues thrown in.