It's not exactly my area but I have some related experience. I suspect the big problem with this is power use. A standard issue wheelchair is very efficient on

It's not exactly my area but I have some related experience. I suspect the big problem with this is power use. A standard issue wheelchair is very efficient on reasonably smooth and flat surfaces. Beyond the obvious problems with e.g. stairs, you can get around ok using just arm muscle power in lots of places. This efficiency helps also if you can't use your arms or the slopes are more challenging. Reasonably sized and weighted batteries can extend your scope a huge amount in very practical ways. As soon as you get away from wheeled locomotion though, the power needs become much more problematic. Not to mention the system complexity is orders of magnitude higher than a basic chair, with all that entails. So short story, I wouldn't expect any significant impact in the next few years. It's possible that for some very specific use cases you'll see a bit more robotics in assistive technology. It's also possible that we'll learn some good tricks from robots about negotiating particular obstacles (e.g. curbs) which can be retrofitted to "dumb" conveyances and improve things...