Highly unlikely, unless he completely re-invents the very nature of his being and even then there is too much tape of him shitting on Trump and his supporters for them to ever fully trust him.
Trump has a knack for connecting on a very primal level with the spineless, dickless, gullible portions of the population - losers with daddy issues who have the IQ of a 5 year old and the emotional intelligence of a 3 year old. Losers in life, who are prone to projecting their failures onto others and never take personal accountability.
You know who fits that description to a T - Donald Trump, himself. That's why he finds it so natural and easy to connect with this type of personality, because he's lived it his entire life. And, luckily for him, there are plenty of people in the US who carry most, if not all, of those enviable qualities in a tight little package.
JP Mandel, the man with two beards, however, is actually an intelligent fella ... intelligent, but weird and awkward in the way he tries to connect with people, in general, let alone the ones described above. He tries to connect with maga on a pseudo-intellectual level, but even that is a level beyond their reach - it's like speaking a to them in a foreign language. Their level is one of primal and rudimentary communication, that's the language they understand and the language Trump speaks well. JP Mandel would consider that type of communication to be beneath him ... and even if he tried to fake it, he would just make things even more weird than he usually does.
Unluckily for JP, the people he would have managed to more naturally connect with are way too intelligent to fool even before he chose to so sell his soul to the maga world. Now, he is a stuck in a world that distrusts him and even hates him, and will probably blame him for Trump's imminent failure. And I haven't even mentioned that his wife and 3 kids are of the wrong "skin color" for way too big a portion of the maga crowd - yet another reason not to trust him, as if they needed more of those.