yes
put corona as default renderer
use corona material converter ( see goodies scetion ) to convert all materials into corona
save it :P and run it everytime instead of your main max shortcut LOL
OR
there is a workaround using a script and changing the defaults settings but the above one is quite convenient if you still need that see the link below :) http://www.ruffstuffcg.com/journal/customizing-3ds-max-start-up-settings.html