It appears that guilds in ESO will have Similair questlines like they did in Morrowind at least for the fighters guild and mashed guild. They appear to have less of a main quest and more of overhauling task system. Would you agree or disagree?

Based on what has been stated disagree. Gathering books and killing dark anchors sounds much more like a rep grind.

This, but then again, Morrowind's guild system basically was rep grind "do 16 mindless tasks that have no real point in order to advance!"

Agreed