afaik, MTP/MIKP is not part of AMPTP, the studio's collective bargaining group.
if true, which i assume it is, mark is free to negotiate terms directly with SAG-AFTRA talent and WGA writers, regardless of the status of the strike.
and, as before, given there is plenty of talent that is keen to work as bills are piling up, mark might be able to land more prominent talent than otherwise feasible if he casts _wish_ before the strike is over.
but first step is signing a director, who is the creative vision for the project and thus the lead in casting decisions, location scouting, etc...
there have been several articles on this concept the past few weeks. eg:
[[ "So, while the intransigence of the AMPTP structure is impeding progress, these behind-the-scenes conversations demonstrate there is a fair deal to be made that addresses our issues," according to the WGA negotiating team. "... We have made it clear that we will negotiate with one or more of the major studios, outside the confines of the AMPTP, to establish the new WGA deal. There is no requirement that the companies negotiate through the AMPTP. So, if the economic destabilization of their own companies isn't enough to cause a studio or two or three to either assert their own self-interest inside the AMPTP, or to break away from the broken AMPTP model, perhaps Wall Street will finally make them do it." ]] https://www.cbsnews.com/losangeles/news/wga-suggests-studios-should-break-from-amptp-negotiating-alliance/