My main prediction is that Harry is going to have some dark moments. Redemption isn't all fun, food, heists, pretty ladies and having a hitter who is fun to watch. He's going to have some struggles. He may realize he's more like Eliot than the other team members.
Breanna's 'worst day' is going to come up again.
The mercenary company that seem to be an overarching plot? That is going to tie in with Hardison's plotline somehow, they are going to be involved with one of the situations he's trying to help.
We've had some pretty blatant hints that Breanna is Not Straight. A coming-out episode would be kind of trite, and that's not the way this show rolls, but I'd like an episode that deals with her queerness explicitly.
Also, considering how ripped-from-the-headlines a lot of the episodes are, I'd like to see an episode address the working conditions and exploitative practices of the video game industry.
Pretty sure we will see something with Harry's family.
Also pretty sure we'll see that one female marshal again and she and Eliot will have a thing, but I hope/am optimistic it's still clear that Hardison&Parker will always be his #1 priority.
There are a number of MLMs selling dodgy/unsafe tasers. Imagine Parker's reaction! Some are unsafe due to being taken out of their original outer casing and put in a pink one instead.
Breanna's 'worst day' is going to come up again.
The mercenary company that seem to be an overarching plot? That is going to tie in with Hardison's plotline somehow, they are going to be involved with one of the situations he's trying to help.
Eliot will flip his hair and be pretty.