Let's hope we get packaging done (very likely at current rate of progress) and these profiles ready for easier testing in Whonix 9 as simple as "sudo apt-get install apparmor-profile-*". When to install them by default is a difficult question, not sure discussing this is premature.
Perhaps in Whonix 10?
The problem with AppArmor profiles, that are not tested and maintained by upstream is, that any upgrades released by upstream (Tor Browser is a good example here) can lead to the application no longer functioning at all. Having Tor Browser break for all Whonix users due to the AppArmor profile would cause a giant wave of support requests and bad press, I think. Perhaps it's better if users are educated about the nature of the profiles, advised to install, and to keep in mind to temporarily remove them (and how!) in case of upgrade/failure. Or if we try to get upstream to takeover maintenance.
For applications developed by the Whonix team (sdwdate...) however, I guess pre-installing them in Whonix 9 or 10 should be easier, since there we know what changes will come and are able to test before release.