Now it's a few months since Adobe muse announced that they will stop and update the program, as well as kill Business Catalyst. Since March, I've tried to find a program / site builder that can replace Adobe Muse. I have not found this. Why? Because nothing can replace Adobe Mouse when it comes to web design without coding. So why does adobe do this? I can not see that they gave us users a good answer why they made this decision.
I can think of a number of reasons why Adobe dropped Muse, but most Muse users are not interested.
Adobe is a worldwide company, and the internet has problems with extending the internet, in that there is not enough capacity. Muse created sites are excessively large for what sites created with it offer, (file size) and take up too much bandwidth if the user is not in a 'developed country' or if the net connection speed is low, (there are still many areas in both north America and Europe with speeds liitle better than dial up.
Then we come to legislation, the wild wild web in which anything goes is vanishing. Compliance to Legislation is now becomming a part of the requirerments when building a web site, and Muse does not offer anything when it comes to complying with those legislations, (would require a complete re-write).
Web standards are becomming a must, and browsers are adding new features all the time that Muse does not offer, and cannot offer.
I could go on, but just to sum up, Muse is outdated, and cannot keep up with the modern web. The only item it offer(d) was ease of use for none-coders, but if you look at the ease of use, and compare it with its deficiancies, both now and what will be deficiencies in the near future, it is a dinosaur.
I agree that some form of drag and drop editor could be built for none coders, but then the user would have to accept its limitations, and at least learn how to apply items such as accessibility and privacy requirements, as these are not 'drag and drop'.
There are lots of options out there if you take the time to look at them. Many have free trials so you can test before you commit to a purchase.
See the Google Sheet.