If the original one doesn't I'm going to be seriously annoyed. I bought one just for XEM. It's still sitting there unopened.
So did I.
AFAIK old devices are supported with a firmware update. But haven't tested it yet. Not even sure if the update is released yet.
Same here, my Trezor is still unopened. I don't think they've released a firmware update yet. Pretty sure old devices will also be supported since the guy who developed the code (Saleem) did all tests in an old Trezor.
XEM will still be supported in the older model.