This is really several questions. I do not read the manga so I'm certain this is likely covered there.
First, is Zangetsu fully restored after Ichigo's powers are restored? Does he look different? Both the Shikai and the Bankai appear different in the anime. Did this transformation result in any physical changes to Zangetsu's appearance? Of course, I mean within Ichigo's inner realm.
In the same vein, did Ichigo retain or regain any of his Hollow powers, or were they completely absorbed when he merged with his inner Hollow as revealed in episode 309?