I don't think the below tweet could possibly be true, but... what if?
If one movie, this thing is probably going to wrap filming around October/November/December. Then? It'll be 14 MONTHS - at the very least - until it hits theaters. That's a ridiculous about of time for post production.
But if two movies? The timing makes a lot more sense. Not only on the back end, but on the front end as well. What if that's one of the reasons it kept getting delayed? They decided to go ahead and write the third script as well? Especially considering, otherwise, it'll be well into the 2030s until the third movie comes out. But if Reeves doesn't want to spend another 3-6 years on the third movie? And could just knock them both out right now? Now we're talking, and now everything makes so much more sense.
That said, pulling such a thing off, without the news leaking, would be unprecedented, and damn near impossible. Do-abe, but man, the level of secrecy would have to be insane, Warner Bros would already have to have another '28 or '29 date already locked, etc. It's such a long shot, but it's fun to dream...