Willian Wallace wins at Falkirk

[DMA]

According to Henry the Blind, the "historian" who made Wallace a Scotish legend, Wallace was betrayed by the Scotish aristocracy who left the battle with their cavalry at the crucial point. Consequentially, as the story goes, the English were able to defeat the Scots.

But what if the cavalry remained &, in doing so, ensured Wallace was victorious.

Would Edward I try again?

Would Wallace once again slaughter the nefarious English in future battles?

Could Wallace kill Edward the Longshanks (or Edward II depending how long the war continues), cut his head off, then tour Scotland with the English Monarch's head on a pike to further support for the independence struggle?

How does Scotland, with presumably Wallace in command of her armies, ensure its independence from the English hoards?

And what are the after effects?

Discuss