Based on the number on this page: https://www.youtube.com/@CGPGrey/about crossing 1 billion after 2023 but before 2025.
https://socialblade.com/youtube/user/cgpgrey/futureprojections/views
Current projection (from a linear regression) puts the date of 1B views at about 16th of january. This of course is a rough estimate, and we are probably due to an accelaration in views. Also depends on upload frequency. But could also be close.
@ScipioFabius looks like the projection puts the date at around Apr 29 (but also this guy is already at ~980M views as of the time of writing, so there are only 20M more views to go)
@duck_master Yeah, this date will probably move a little forward yet still, but unless something cataclismic happens, this is basically YES