Disclaimer - I don't know how dependable this guy is, since I've not followed him before.
Translation:
The world's two 6th-generation aircraft (will be unveiled) at the same time
Thankfully, technology is in the grasp of the (Chinese) civilization
The U.S.-led West (will) receive a double-Christmas present
TL; DR - Basically similar information as what has been posted this morning.
Speaking of which, what's more noteworthy is that
SA has echoed similar information (with the caption "南北并进" (i.e. "north-&-south going together")) in a now-deleted Weibo post sometime this afternoon, of which he quote-posted a hint post by
AI with a Chinese show/skit screenshot that has a subtitle "黑土".
SA also explained in the comment section that was related to both Chengdu and Shenyang.
I didn't manage to save the post before it was deleted.
Though, I think we can confidently say that we might be able to expect that Shenyang's demonstrator/prototype to take flight within one year (or even one month) of Chengdu's demonstrator/prototype.
(The underlined two-capital-letter phrases are short abbreviations of well-known sources on the Chinese internet that are deemed highly dependable/reliable.)