Uh yeah on the whole subject of replacing Neil...
You guys are clear that the Rush hiatus of the late 90s was due entirely to the loss of Neil's wife and daughter, and his subsequent "multi-year solo motorcycle ride around North/South America".
At the time, in every interview I read with both Alex and Geddy they clearly stated that they would reform when Neil was ready, or they would not reform. They were not sure if they ever would play as Rush again because they were not sure Neil would come back, and they were unwilling to continue without him.
As a result, I'd say their chances of continuing as Rush are exactly 0%, if Neil cannot perform.
Weird how people forget somewhat recent history.