There has been evidence of this new remastered original trilogy slowly building online over recent months. This is due to the restoration company posting short clips to a quiet unknown YouTube account.
Check out this video on an explanation on what has been happening and a comparison between the new remaster and the current 4K discs.
TLDW: The new remaster looks way better than the current discs.
Then check out this 17 minute compilation of remastered original trilogy clips that have appeared online so far.
In the deleted scene, Han walked around the actor playing the (then human) Jabba. When they put the much larger digital Jabba in, there wasn’t room for Han to walk around him, so they did the tail gag.
Right right! Thanks friend!