Board Thread:The Panopticon/@comment-4028641-20151008023030/@comment-6032121-20191107213356

The word "Skaro" isn't even mentioned in The Eight Doctors; it's only said that the Master decides that "all he had to do now was get killed".

Yes, come to think of it, it's entirely possible for him to give up on this plan temporarily once he gets cured of the Cheetah Virus as per other offscreen sources, use the Deathworm Morphant to body-hop some after his Ainley body (and possibly the Tzun regeneration) wear out, and eventually end up as the half-decaying Tipple Master. That Master is then coincidentally ambushed by the Daleks in Egypt, and since he still has the Morphant, goes "what the hell, guess I'm going through with that scheme after all".