Something that caught my attention when watching ESB again recently is that Kenobi and Anakin are specifically referred to as Jedi Knights, while Yoda is called a Jedi Master. No big deal in and of itself, as it would perhaps suggest that Yoda is higher than the two amongst Jedi. That's certainly how the prequels went, doing Padawan(sigh)>Knight>Master.

But given how vague it is, it had me thinking that perhaps, there were several different types of Jedi. Maybe knights were the ones acting as peacekeepers with masters as specifically that, teachers of the deep ways of the force, who maintained a deep connection to the Force throughout their whole lives. I mean Obi-Wan does specifically say that "Jedi Knights" were the guardians of peace and justice in the Old Republic. With that its not too hard to imagine Obi-Wan and others acting in such a fashion, with old teachers like Yoda far away from the front lines because they're fighters. Maybe's that's why Kenobi was considered unusual for taking Anakin as student given that usually Jedi masters fill that role.

Granted this has the risk of perhaps being at bit too specific and/or dogmatic, but its intriguing to envision Jedi acting in roles far more diverse than we saw in the original films, because well, there's more than two of them. Jedi acting as builders, planners, thinkers, etc; using the connection to the Force in ways beyond just as peacekeepers. Hence the Clone Wars leads to them getting involved as soldiers in numbers far beyond just the initial knights. Wouldn't that be telling of how devastating Palpatine's purge is; that we're eventually left with a knight and a master, with all the other kinds wiped out.

(Of course this would potentially contradict the skepticism towards the force if the Jedi aren't just isolated knights doing their own thing, but they're might be a way around that.)

Just a thought, not something I've given specific direction for, but I figured worth bringing up.