I think Starfleet is kind of destined to head towards those AGT uniforms, as we've seen them in nearly all possible futures in TNG/DS9/VOY era Trek.
Not just the uniforms, but the equipment seems to be following the pattern laid down in AGT. Captain La Forge in 'Timeless' (VOY) was wearing a FC style uniform, but an AGT combadge. Of course, the Negh'var class warships seen in the possible future timeline in AGT, later showed up in the 'present' DS9 timeline.
The future phasers, seen in 'Endgame', later cropped up as the standard issue Starfleet phasers in the present timeline, in Star Trek:Nemesis.