Chances are the upgrades will be similar to the +1ing of the artifact and relic sets of olden years...
Do this thing: have a chance at getting a drop that you might want for a set you use, get these items (in this case, Bayld... hopefully) and then trade it all to an NPC who makes it shiney.

I just hope we can skip the +1ing the way we can with relic pieces when those became +2able.

I also hope that iLv109 AF and iLv113 relic sets aren't just take what they have an multiply the numbers by 2.
Because... dear god.... smn AF1.... it's so bad.... even the marginal fixing it with AF1+1 was still not great...
(just guessing the iLv of relic sets... but I'm betting they'll be between 113 and 115. With empy+3 being 118 or so.)