seems like the 22nd century enterprise stuff is still canon for *this* reality. it's a little paradoxy because the cochran/borg/first contact loop that led to that episode is not so different from the spock/romulans singularity shenanigans that set off this timeline in the first place.

since they're from the other side of the galaxy though, 30ish years probably isn't enough time for them to diverge too much from the prime timeline...the only question involved here is how/when they come into direct contact with the federation.

that said, i hope they don't go anywhere near the borg. it's been done to death in star trek, and stargate did it better for several seasons.