I’m not sure what the benefit is to such a move. RaiBlocks is a very distinctive name and has a fine logo. The Nano name is currently used in multiple ways/brands- the iPod nano, a text editor, nanotechnology, a car, a plane, a handgun, etc.
Rebranding will set the system back and take away from what has been achieved to date. It would only be worthwhile if the gain from the change is much larger than the loss of the established brand.
Also, there are practical considerations. They have plenty of tech support issues right now with the recent expansion of RaiBlocks use. Do they have the resources to support communicating this change? Have they secured domain names? What issues will this create for the software and for exchanges?
I see a lot of potential difficulties. So, what are the benefits?