End of life for DELTA Max and RIVER Pro?

It looks like the NMC chemistry power stations like DELTA Max 1600/2000 and RIVER Pro have disappeared from the EF website, but the DELTA 1300 still exists.

I was late to the game and only have LFP RIVERs and DELTAs, but this seems to be the beginning of the end for EF NMC products. Out with the old, in with the new.