Swap Cassandra and Cullen's sexuality to same sex only?
You mean post-Inquisition? Like they both realize they are gay? Oh, the drama! That would certainly make two groups form on the BSN. Those upset that their Inquisitors were dumped and those happy because they asked for a S/S romance with Cassandra and/or Cullen.
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Be given a pet nug at the start of the next game. Raise it, upgrade it, have be able to fight in combat. Create cute cutscenes with the nug. Then have the villain kill the nug towards the end.
Solas wins, all races die except for ancient elves. World changed forever. Elves slay all Titans and dwarves. The Ancient Elves that woke all talk like orcs/orks from Warhammer.
Elf Gods (just replace reference of orks to elves)
other elves (replace orks with elves)