PM Margaret Thatcher Serves One More Term

[Frodo]

Can anyone construct a scenario in which Prime Minister Margaret Thatcher avoids an intraparty rebellion in 1990 that in OTL resulted in her resigning from office, and goes on to win a fourth (and final) term in 1992?  Would Tony Blair have eventually gained control of the Labour Party after Neil Kinnock's resignation in the wake of his defeat, and win a landslide Labour victory in the next general election (presumably in 1997), again as in OTL?  

[Dr. Cynic]

I can't think of a way where she avoids raising the ire of Heseltine and co. except for maybe a change in her personality. She was unpopular by that time and I don't see her winning a 1992 election outright. I think Labour would win. Say Labour ousts Kinnock instead of the Tories ousting Thatcher and install John Smith who was quite a bit better regarded by the British population than Kinnock. Smith would have likely won in '92.