I realize this program has reached it's EOL but since you will be taking away Business Catalyst, can you PLEASE add a way for us to upload to a testing server.
A second FTP server would be enough. I wouldn't imagine it would be a hard thing to add.
Thanks for your consideration.
There is no plan to reintroduce this feature in Muse or Business Catalyst. I wish I had a better answer but that is the most honest one.
I totally understand your frustration and apologize for the same.
Yes, it is very inconvenient for us without an option of publishing trial sites, however, we can still workaround on this.
You can proceed to publish trial sites as per the steps noted here: Publishing in Muse with Business Catalyst - Google Docs
Essentially, you have to set up the site in BC first before attempting to publish in Muse.
Please note that the trial sites created this way are deleted after 30 days if not upgraded.
I hope this helps!