출처 - https://us.battle.net/forums/en/sc2/topic/20767608334?page=2
Tychus doesn't necessarily open the way for dead commanders, it was always open, it's the first time they are exploring it.
Who they make as commanders is partly due to popularity. Tychus is a popular choice.
Co-op popularity - a little coy on details but says it's still popular.
They work on more than one commander at any given time (going off a question of whether Tychus is the last one)
Race for next commander doesn't necessarily follow a pattern or protocol.
Co-op PvP is something at the back of their minds, not that it will become a thing, but partly because it is surprisingly popular.
Nothing about Tychus release date.