Reposted for wording fail.
I can't verify her claims, but Strickland says this on the matter:
With a landmark issue coming, big number 200, staff wondered: what to do for the occasion? It was decided that Ms. Marvel would have a baby. Michelinie said that it would be the Supreme Intelligence's kid, since the Supremor has always wanted a Kree-Terran hybrid. This would natually lead to an intriguing adventure, a climax to the years of scheming through countless comics for the Supremor, and a probable end to the Supremor himself, once Ms. Marvel beat him up for what he did to her -- and her child.
Ah -- but Jim Shooter said no! What If #20: "What if the Avengers Fought the Kree-Skull War without Rick Jones?" had ended its tale with the imaginary/parallel world Supremor merging his intelligence with the inert form of Mr. Jones to become himself his precious hybrid. Jim Shooter, editor-in-chief of the Marvel Multiverse, proclaimed that the story would be too much alike and too soon after the What If? story. He didn't bother to look at the many times in which the Supremor's plans have infiltrated a half-dozen titles within as many months in years past, with no complaint from readers.