I think Urgot does not need buffs anymore.
He has so much good toys to be super good (even somewhat in the late game).
Things like Thunderlord, Deaths Dance or Steraks are so good on him.
And through his natural tankyness (mostly his shield and the fact you build steraks and frozen heart on him) you will 2 or 3 shot squishy targets and still survive your own engage/enemy engages.
The main problem that Urgot has is that everything doesn't fit.
Outdated lore/visuals, lack of design and counterplay in his kit... you know what I mean.
Overbuffing Urgot will lead to him beeing super OP and overnerfing him will give us a joke champion.
So I think he is in a pretty good spot right now if you can play him as he has somewhat of a hard laning phase and is pretty overloaded with lock on mechanics, Q and auto slows, damage reduction and ult swap with a fear and a slow (+ damage reduction).
We will probably not hear too much about Urgot buffs until riot gets him in the pipeline for his full relaunch, but that is still pretty off since Ryze, Yorick and Warwick are first. And noone knows who riot has planned after these 3.
is a lane bully and nobody plays him and stuff.
But seriously he is USELESS late game. Even Lee Sin or Pantheon can do things better than him at late game. (I mean he CAN use his ult to do some crazy stuff but he is really not that tanky if he can't get some kills in early game)
So my suggestions is that we give his Q on-hit effects... Or decrease his CD for W and E?
Although that might be very broken according to my past few matches agains 
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