Hmm... so many fine choices...
Graham would have discovered he was King Edward's son, making him the true heir to the throne after all!Nah, it would be like "I've gone through all that trouble to get the treasures and win the kingdom... when could have just grilled the midwife instead!"
Valanice would've gone off to find her family instead of having a shotgun marriage to Graham!Well, it would be nice to have your family at your wedding. It also saves you years of people resenting you for not getting invited. Both Graham AND Valanice should have gone and invited their families, and it should have been a proper wedding at Daventry Castle instead of that old church. Graham's a king, he could have afforded a better reception, and it's hard to believe Valanice was such a non-demending bride

Since you refer to it so many times, I guess the "shotgun wedding" issue would be explained in KQ9... maybe Valanice had a reason to want to marry in a hurry. Maybe she was under a curse that makes her turn into an ogre after sunset or something
Alexander stays in Llewdor and studies Mannannan's old books to become a great and powerful wizard himself!YEAH! isn't that exactly what you would think he should do if you don't enter the oracle's cave or do the "dough in ears" spell?
Rosella would have said "yes" to Edgar's proposal!No. Sympathy for Edgar and all, I always liked the fact that Rosella doesn't act like your typical fairytale princess and marry the prince at the end
Graham would have cast a reversal spell that returns his family and traps Mordack in the bottle instead!Mordack in a bottle? sure! only Cedric should also get trapped in there with him - it's even more vengeful, and the world would be a less annoying place
Alexander would have instead won the fight with Alhazred by chopping off the man's hand!No, because: a. Yuck, b. If I wanted to see chopped bodyparts flying around, there are many good games which provide just that kind of fun
Rosella would've used the life on HERSELF instead!Kinda did that in KQ4 already... with less than happy results
Connor would have worn the Mask of Eternity and go crazy like Jim Carrey!

Definitely. What's the point in running around and re-assembling the mask when you don't even get to wear it? an item unused is a useless item. The same goes for the talisman in KQ4 - Rosella should have used it instead of just giving it away.
