Ok, so I just spent more time than I would like to admit watching old episodes, and the article posted makes some good points.
In the early seasons of this show, you can see some real creativity come out in the design and function of these bots. They were effective, but fun at the same time. (For example, I watched a match between a treaded R.O.B.-like thing with saw arms face off against something that dropped a lady-bug painted dome to trap enemies.) But go to the later days and you start seeing the dawn of the wedges, you see creativity kinda flow out as a single design takes a favorable position and you have these bland bots facing off with generic weapons, the creative ones seem more like jokes than actual competitors.
Now, I watched some smaller-scale stuff taking place in 2012. That's still in the past, but newer compared to BattleBots. They featured some of the tech and designs used, and I think this new season will be very promising. Wedges were still common, and you generally saw bulkier frames as compared to some of the more exotic models. But that being said, it seems like the weaponry has evolved in really cool ways, some even make weapons specifically designed to take out wedges, so they were starting to see a decline in those because they were being targeted. I saw these pressure-pikes and flamethrowers that I think would be really awesome, as well as a moveable blade designed to get under thing and shoot up.
New tech could make these things really awesome, so I'll be watching.