I think this request (or at least part of it) may have been raised before, but I can't seem to find it. So, just to be safe, I'm bringing it up again. At the same time, I'd like to get a discussion going: perhaps there are other or better ideas for improving this feature.
Last summer, I was diverted off the motorway several times because of traffic jams. At some point, MRA apparently changed the route automatically. I don't know whether this is always accompanied by a notification, but I certainly didn't notice one.
The only indication that the route had been changed was the white line showing the original route. Around the moment when you receive a navigation instruction, you have to notice this yourself. Especially around large and busy junctions, that is absolutely not always possible while riding.
Another thing that isn't clear to me is how much time I would actually save by taking the alternative route. I think that is important information when deciding whether or not to follow the detour.
When I'm towing the caravan, for example, I would often rather just stay in the traffic jam. The same applies in many situations when I'm riding the motorcycle. However, if I can see that an alternative route would save me, say, 2 hours, I know that I'm dealing with a serious traffic jam or road closure, and taking the alternative route obviously becomes much more appealing.
My suggestion would therefore be that, whenever MRA automatically changes the route, it should clearly show:
that MRA has changed the route;
why the route has been changed, for example because of a traffic jam or road closure (I seem to remember that the Zumo also showed this);
how much time you are expected to save by taking the alternative route, and how many additional kilometres it involves;
and possibly the option to accept or reject the alternative route.
If other navigation apps and devices can already do this, such as Google Maps and the Garmin Zumo devices, then MRA should obviously be able to do it even better.