Recoome is in. dont worry. However, it makes no sense that Jeice isn't in though....
Recoome - Eraser Gun. Can be a good strong beam attack.
Guldo - Time Freeze, Mind Freeze, and Telekenesis. Nice psychic attacks.
Jeice - Fire Crusher Ball. Could be a good Projectile weapon as strong as Finishing Buster or so.
Ginyu - Milky Cannon? (cough) and of course Body Change. Who knows what he can do.
Burter - Nothing. Thats why I wonder why Burter was put in and not Jeice. Maybe Burter is the melee person. He WAS supposed to be the "fastest" Ginyu member, so maybe the plan for Burter is to not give him any major attacks, but bump up his speed a good chunk.
Anyway, we dunno if Jeice was secretly put in or not, but I assure you, the rest of the Ginyu force is there. :]
As for Android 18, she's definately in as well as 17 as her buddy. But as a current representative for the Tien crew, I will say we're all trying hard to get him in. Our main concern is that if the model will be done soon along with animations in time to be put into the final release.
If not, maybe we can convince the team to simply make Tien's involvement to be made into a patch in case he's finished late. :]