[Edit: I see I got ninja-ed on this.]
The first question is, will there be any updates to the SRD at all?
After all, it's been a year since they announced their intention to move the 3.5E SRD into Creative Commons, and if there's been any movement on that front, I haven't heard of it. Now, to be fair, there was some due diligence to be done -- the 5E SRD contained a few references like "Strahd von Zarovich" and "mind flayer," and since Creative Commons has no concept of product identity, putting the SRD into CC meant those names were released for anyone to use. WotC would quite reasonably want to make sure they didn't repeat that. But given that the SRD itself spells out what constitutes product identity, it should not take a year to search the collection of 3.5E open content for relevant terms and remove them.
It may be that they are in fact moving forward on this, but it's a low priority and keeps getting shoved behind other things -- a new edition is coming up, after all. But as anyone familiar with large bureaucracies knows, a thing which gets delayed over and over runs an increasing risk of being dropped altogether. And if the 3.5E SRD is caught in a cycle of delays, it's more than likely that the new edition SRD will face similar hurdles.
It may be time to start putting pressure on WotC to follow through with their commitments* on the 3.5E SRD. If they realize we take this seriously, they'll be more likely to hold to their word on 2024E.
*Technically speaking, they did not commit to putting 3.5 in CC. But they said they wanted to do it and that they were reviewing the 3.5 open materials for release; they clearly wanted 3E fans to think it was coming. IMO, that puts an obligation on them to either follow through or announce clearly that it's not happening and why.