No sidebuttons is kinda disappointing. But it's supposed to be a entry-level mouse (hope it will have a entry-level price aswell, and by that I don't mean just $10 less than the high-end models) so that's kinda to be expected.
3310 with small(ish?) ambi shape sounds good though.
If it's under 80g I might give it a shot.
My grip type didn't mesh well with the Abyssus, the more I look at the comparison it looks like ROG is just making higher quality DeathAdder/Abyssus. Great for people who love those shapes, not so good for me.