So, we all know Legion and BFA were harsh on alts with their power up systems, legendaries, corruptions etc..
With Shadowlands following a similar pattern, with Covenants having soul binds which will take time to collect, we're heading for a similar feel.
As a suggestion, I believe having your chosen Covenant/Soul Bind should be account wide, for that specific Covenant.
So, say you max out your reputation and binds with the Night Fae, and decide to level an alt, if you decide to go with Night Fae again, we should be given access to all of our main characters soul binds and standing. If you choose another Covenant, you start from scratch as you normally would (which gives more of a personal choice).
Also, I feel the Mission Table could use an account wide system also. Basically you send missions off per account, instead of character. I think this would be fair on solo players, and people with plentiful alts. Just give us more followers/missions to send out at a time perhaps.
Really struggling to enjoy playing alts at the moment and wanted to share what I think could have been a cool look at for the future.