The only really critical part of the ancients is that they are used to explain the omnipresence of humans in space in Traveller. That is why they were about in a time frame of several undred thousand years ago, and not more.
Appart from that they are meant to be a mystery. The problem with us is we all know about them, or him more precisely, by now. If you find a group of players who know nothing of the setting (and I know quite a few), I am pretty sure the Ancients as written in Traveller can have a lot of charm, so long as you reveal things sparingly.
Of course it is also possible to replace the Ancients as written by another bunch of ancients, the only critical thing tio the 3I setting is to explain somehow the human (and optionnaly Droyne) presence all over known space, and if possible the existence of the Vargr. So somehow something has to happen a couple ou hundred thousand years ago (give or take an order of magnitude) that involves humans being transplanted from earth. In that case the whole setting is pretty much unchanged, only a couple of adventures published 20+ years ago need to be ignored.
Appart from that they are meant to be a mystery. The problem with us is we all know about them, or him more precisely, by now. If you find a group of players who know nothing of the setting (and I know quite a few), I am pretty sure the Ancients as written in Traveller can have a lot of charm, so long as you reveal things sparingly.
Of course it is also possible to replace the Ancients as written by another bunch of ancients, the only critical thing tio the 3I setting is to explain somehow the human (and optionnaly Droyne) presence all over known space, and if possible the existence of the Vargr. So somehow something has to happen a couple ou hundred thousand years ago (give or take an order of magnitude) that involves humans being transplanted from earth. In that case the whole setting is pretty much unchanged, only a couple of adventures published 20+ years ago need to be ignored.