since nobody was able to answer my question
Ekwb sold waterblocks for 2080ti Strix... which is a direct competitor to evgas ftw3.
what this is telling me is that its a no brainer to buy the 3090 Rog Strix card since i can have the upgraded custom pcb from day 1 (aka better overclocking than standard cards) and then possibly convert it to water later.
So my question is, will evga sell their own conversion kits for ftw3??
If not, then everyone who watercools will have to wait a long time to get their 3090.. meanwhile ppl will be enjoying cyberpunk maxed out while you will be a loser just waiting.
The alternative? Abandon evga and buy a FE card or see who alphacool/ekwb supports.... and very likely it wont be an evga card