No they wouldn't. All HTC would need to do is state what languages the game supports and only add support for those languages. For example, FFXI is global game with players all over the world but yet only supports 4 languages (Japanese, English, French and German) and has support for those languages. HTC can easily do the same.
ack-ack
I'm just wishing the keyboard support, not the language that would mean to translate the whole game and as it is now.
That's the point, precisely! We're just asking for keyboard and characters support, something that shouldn't be that difficult to add. Each key on the keyboard has a specific code that is the same for every keyboard in any configuration all around the world: it's the OS that, being set to the right language set, interpret the code as a given character. I can use my Italian keyboard as an American one, I just have to tell to the OS to interpret the keyboard as American.
I think HTC just have to insert the same type of code to give us support for different keyboard:that's not the hard part, it's done in a lot of games. More time consuming, maybe, would be to add the specific characters to be displayed in the text buffer, honestly I don't have a clue of how difficult it could be.