system
Given the following post, respond as if you're commenting on Reddit:
human
[WH40K] Could the Emperor "fix" things in the present?

So, if the Emperor were to heal totally and wake up today (as in the WH40K present, not 2015 :P), would he be able to fix things in the galaxy? Fixing, of course, being relative to the Imperium/mankind in general (sorry Tau), finishing his webway, destroying/crippling humanity's enemies, etc. 

Also, after millennia of devotion and worship from most of mankind, what kind of creature would he be?
gpt
The Emperor is not subject to the same effects as Chaos Gods, as he's entirely bound to a mortal frame, basically manifesting as an immensely powerful Psyker. The devotion and worship of mankind will not have had any impact on either his power, or his outlook.

As for can he 'fix' things... probably not. The Webway project is almost entirely a failure, he lacks the leadership and capabilities of his Primarchs, and the Imperiumis faced with far worse threats than he had to contend with during the Great Crusade.