If not the 763, a few 753s would help with some load issues.
Not many of those to go around, eh?
Are both those SAN
I think the growth of the fleet could alleviate pressure without adding a wildly new type.
They could easily add the 321, free up more 757s, then increase frequency with 757 flying. Not to mention the many, many parked 757s with RB211s that HP
could get for a breeze and not even add the 321 as a new subtype.
More frequency is always preferable, if you can afford to pull it off, but in this case it'd certainly be better than acquiring a new widebody type when all you have is narrowbodies.