Yep, I agree. 3-4 yrs is too long a time for any card to be launched...they can't be planning something like this and writing codes towards launching it for ages. I was fortunate to have read a comparison between Infinia & Infinia Reserve in terms of their rewards & benefits on X somewhere 😀. Some folks are much ahead in time. Even if those leaks are to be believed, Reserve falls shorts of my expectations of being an ultra premium card.
Infina is their golden goose and same for the folks using it really well. Infact, I think, they at some point will start distinguishing between Infina Metal and Plastic given Metal usually isn't issued LTF and comes with a more premium pricing. Additional benefits on Metal would intrigue people holding Infinia plastic to move to Metal variant which will also align their strategy of phasing out plastic cards and also the ones with LTF pricing in super premium category.