Star Wars: The Bad Batch has many similarities to that of its predecessor, Star Wars: The Clone Wars. They both use the same animation style, both use the same score composer, both have similar episode lengths, both are aimed at similar age groups, they both follow the theme of exploring the human side of Clone Troopers and many other similarities. The first few seasons of Star Wars: The Clone Wars contained many 'filler' episodes, a theme Star Wars: The Bad Batch seems to also be following. Due to the success of Star Wars: The Clone Wars among fans and the many directions it has taken the Star Wars franchise as a whole, I think it is clear that Lucasfilm are attempting to replicate that success. This is why I think we will see many upcoming seasons of Star Wars: The Bad Batch, each released a year or two apart. I’ll make the following theories and predictions based on this assumption. 

The Clone assassin we saw in episode 7 either had his inhibitor chip turned up or was genetically modified to be extra loyal to the Republic/Empire. Otherwise, no other trooper would have given their life for something like that (except Crosshair). 

I think Echo going off with Rex will be an excuse to make some episodes feature just them on a mission that doesn't require an entire squad and is not so held back by Hunter's cautiousness. It may also bring Cody back into the story and we could see them reunite since the Clone Wars. This may also lead Ahsoka into the story, as she always had a personal connection to the clones (she spent a lot of her life around them) and she has a lot of empathy for them after her experience of Order 66. 

Between seasons, we may experience the occasional time jump, so that we are not stuck in the same era of Star Wars and are instead witnessing more and more newer events play out. 

In one of the later seasons of The Bad Batch, we will see Luthen’s backstory (if it’s not in Andor season 2). With only one more season of Andor remaining, I wouldn’t be surprised if we didn’t get much info about Luthen Rael’s backstory. The Bad Batch could show us more about how he sacrificed "Everything" for the cause, giving up all chance at inner peace, sharing his dreams with ghosts and giving up his life for someone else’s future. We may also see how Luthen came into contact with Kleya, Mon, Saw, etc.

Season 3 will lead to a second Clone War between the Clones (and some remaining Jedi like Gungi, Ahsoka and Quinlan Vos) and The Empire. The Empire will win of course, but if the Empire use a dirty tactic to do so, it may show more of the galaxy what the Empire is really like and contribute to the Rebel cause.

During one of the later seasons, we will see Rex meeting with Gregor and Wolffe, before they go off to live in the old AT-TE.

Thoughts?