The person you're referring to is of course Pixelade, who is more of a critic of The Sims than anything else these days - he's spreading a very negative view of the game. I liked what he said before, but not anymore. And without saying any more, everyone knows why. It's his livelihood that's at stake. Even today, he can't let The Sims 4 alone...
Most of the people got there info from Sims Community on X/Twitter they posted an article about it. Late November early December it was an article about changes coming to the Sims 4 Base Game with Open Neighborhood, and Seasons and I think Milestones.
SimMattically around September, October time said that this will be the last EP for awhile which back in the day it was one EP an entire year with SP and GPs.
Now Sims Community came out with another article saying that the Sims 4 is ending this year but another Sims 4 Base game is updating.
