In the hypothetical that some team makes an offer the Brewers can't refuse, I suppose it's possible the Brewers would trade him, but I tend to think that many of us are putting too much weight on the Hader decision last season, as if it was the new model for doing business. I tend to agree with the poster that stated that trading a SP is much much different than trading a closer from a stacked bullpen.
We also seem to forget that Hader was struggling mightily before the trade, and that the Brewers got a good closer (also struggling) back in the deal. If you squint, there is enough evidence there that the Brewers legitimately believed trading Hader at that time and getting Rogers back made the Brewers better last season. I doubt many of us here would have agreed with that, but it is possible, and it certainly didn't work, if that was the goal. A similar deadline deal involving Burnes would not just net prospects, but also get back a legit MLB starter.