I think he mistook the effects of modern life/internet with the effects of the bubble especially since while in hindsight the bubble was the start of japans decline, when Evangelion was made in 1995 no one would've saw it as anything more than a simple recession that they would eventually overcome.
EVA is also one of the sources of otaku culture so it being made still probably means alot of tropes would be the same
If the bubble ends up being nothing but a temporary recession, I think the Japanese media landscape might modernize in the same way South Korea's did, fully embracing the internet's potential - something that would help Japan's music scene rival South Korea's, even though overseas audiences will become exposed to some truly vile anime in the process, just think about how much borderline
ecchi shit is available on streaming today.
OVAs will die, eventually, but only as a physical format, they will just be made into content to download or stream - IRL, most modern OVAs seem to be based on IPs that are already established, but the reverse could be true here as well, with successful OVAs paving the way for new anime series. As for how this will impact anime genres, there will still be a population decline and the subsequent rise in "cute girls doing cute things" anime, work conditions will still be shit, leading to the birth of
isekai-esque escapism, and even though the economy's doing better, ironically the coexistence of a decent economy with a declining populace and hellish working conditions might lead to the creation of anime and OVAs with dark undertones nonetheless, exploring the dark sides of this seemingly endless boom, both realistically and through speculative fiction metaphors.