When you ignore the parameters of this game it's just a waste of time to suggest an idea like this. Playable races have to speak basic.
And a Wookie can be a Jedi - GL
Bioware said they wouldn't do that for new races, but as a completely new class (and as iconic and wanted as it is) new voice actors would be needed. They could just use roaring and I think that player would overlook that because they are playing as a WOOKIEE. Also while there are Wookiee Jedi GL said no more.