I have to admit I was more sceptical of this scenario, but you are 100% on this...
If Trump pushes to ban suppressors (whatever that means for an NFA device) the House would be more than willing enough to send a nice piece of Bloomberg-written legislation to the Senate in about 30 seconds.
If Trump pushed the Senate you would have some GOP-ers who would support it out of 'loyalty', and other who are just RINOs and would vote for it because of media coverage. I'm sure they would grandfather existing owners as a 'compromise', or maybe allow new sales but with an inflation-adjusted 'tax', which is almost $,000 in today's money.
And of course Trump would sign it if he was the one pushing it in the first place.
I'm still hoping this will blow over.
I didn't see any new suppressor-articles pop up on my news feed today that weren't from pro gun sources. That could be good or bad. A lot of times it seems like the backroom wheeling and dealing is preceded by a news blackout. Just look at the bumpstock ban... that got almost no press outside the gun community once it was announced, even with all the court cases and such.
On the flip side the word might have filtered out that it was a homemade can, which would pretty much sink any new legislation. That would be the best-case scenario.
A lot of “if’s”in your post.... I would file this under pure speculation...