Yes. Last year they released a video saying it wasn't Vic 3 which probably means we should take them at their word for it. Perhaps you can say the offhand / throwaway comment in the background of this video seems different but then on Paradox Interactive Twitter they wrote, "We've told you what it isn't, but what could it be?" so doesn't sound like this is going to be a big gotcha! for those waiting for Vic 3. Which, idk, is Paradox working on it? Unless they think "is it Vic 3?" has become a joke its clear lots of the classic paradox customer base are really wanting this.
ALSO, this just sounds crazy to me but on some other forum a few people (clearly not Paradox super-aficionados) were speculating that it may be CK3 ! That's just crazy talking right? I mean they're just now releasing a new patch for CK2.
Meh, CK3 is coming sooner rather than later. I suspect it'll be Vicky3>CK3>EU5, each with about a year or a year and a half in between them.