Point is, "next gen RDNA" on this slide at the private meeting for Gamer's Nexus, Anandtech, Richard from Digital Foundry etc. means at least 2nd generation PC cards. They have already been briefed on this year's product lineup at this point, and have moved on to the future roadmap.
When Dr Lisa Su is announcing Navi / RDNA / 5700XT to the public for the first time at the E3 event, "next gen RDNA" means anything post-GCN.
The quotes from one presentation and the slide from another are intermingled to create a misleading impression.
Again - doesn't mean it's not the case. But it also doesn't mean "Lisa Su states XB2 is a gen ahead of PS5 in shock reveal, Klobrille confirms!".
I was not intending to agree that XB2 is a gem ahead of PS5.
I'm just saying RDNA v2 is definitely coming, and one if not both consoles will have RDNA v2 features, at the very least hardware RT