The video can be watched here. In case you cannot or do not feel like watching it now, here is the gist of it:

– as is usually the case with sequels, BL3 is basically the same as before, only more: more guns, new characters and skills, new regions to explore,
– Sanctuary 3, space ship that will serve as our transport between planets as well as home base,
– separate loot in co-op mode, that will also scale to each character’s level.

Borderlands 3 will come out on September 13th.