I've accepted that Burnes will be a Brewer for no more than 2 more seasons.
The Brewers are stuck in the position of being a good but not great baseball club, and simply can't compete with the resources of the larger market clubs in the NL to expect to come out of the NL anytime soon without a whole lot of good luck going right in October.
Peralta and Ashby have been extended. Perhaps Woodruff, somewhat less costly of an asset than Burnes, could be extended to help keep the pitching staff mostly in tact?
A trade for Burnes could come close to a Juan Soto type return in terms of capital for setting the club up for the future, while at the same time the team could avoid a full blown rebuild and still reasonably expect to be competitive in the weak NL Central.
If you don't move him this offseason, the returns start diminishing significantly. Go for it with your ace the next 2 seasons, or move him at the winter meetings?