As far as a "Keystone sponsored toyhauler rally" I am not aware of any corporate sponsored rally type events except for the Montana Owner's Rally. Keystone hasn't sponsored any "national or regional events" that I'm aware of, at least for the past 15 years. The only corporate sponsored events are for the "top of the line" Montana series.
There was some interest several years ago about having a "Keystone rally" in a "multi-state region" such as a Southeast rally, a Northwest rally, etc. But those more or less fell by the wayside due to the need for volunteers to commit funds to secure a facility, guarantee a specific number of sites, do the work of organizing and planning events and directing the activities during the event. There just were no volunteers that wanted to take on the financial commitments and do the hard work of making it happen.
Then along came COVID and even the remote possibility of such an event fell even further into the ditch......
So, no, there is no "talk of a Keystone toyhauler rally", in fact, no talk of even an "all brands made by Keystone rally"....
Any volunteers ???
2015 F250 6.7l 4x4
2014 Cougar X Lite 27RKS