If we follow that logic we can only get Trek books until Spock goes back in time, then we're all trapped in the Abramsverse. *lol*
Not at all. Because it is part of the film canon that that time travel created a parallel timeline rather than altering/overwriting the Prime timeline. Note that
Star Trek Online, a CBS-authorized tie-in, is set in the Prime timeline in 2409. Obviously the owners of the franchise have no problem with the idea of the Prime timeline continuing to exist in parallel with the Abramsverse. It was never the intention of the filmmakers to replace or undo the classic ST timeline, only to complement it.
I consider Romulus' sun going nova a possible future, not THE future.
Well, first off, it wasn't Romulus's sun, or the planet would've been destroyed in minutes. It was some unnamed star that was presumably nearby; the
Countdown tie-in comic named it Hobus. Either it was a wide companion just a few light-days or light-weeks away, or supernova blast waves can travel faster than light in the Trek universe.
Second, you're talking about this as if it were real, as if it had some existence independent of the fictional franchise.
Star Trek is a series of fictional tales on film and television.
Star Trek tie-ins in other media are supplemetary works that are contractually required to remain consistent with those tales. Therefore, any professionally published work of
Star Trek fiction set in or after 2387 will acknowledge the supernova and the destruction of Romulus. Because that's what tie-in fiction does: it expands on the original work without intentionally contradicting it.
If you want to write fan fiction in which the supernova never happens, go ahead, knock yourself out. But the professional fiction does not have that option.