Yes, I was very hopeful about its future. Been using it since vesion 3 whhen Mark was running it. Sadly I shall have to look at alternatives as well. Juergen, can you tell me what you have been using instead? Can send by pm istead of on here if you like.
If you find a solutions please let me know. I'm using Blocs designer and have been using Pulse because it works pretty well to create a Blocs CMS site.
If you are using Blocs, I would definitely check out Volt CMS by @instacks (Jannis uses the name "BlocsAddons" for his Blocs products) Does pretty much everything Pulse does, and is far better supported. Only real drawback is it is Blocs only, so not an answer for people looking for an alternative using other environments.
Personally - I have moved on to Wordpress now and the excellent Oxygen Builder. I haven't added Pulse to a new site in almost 2 years, and slowly migrating everything away. I only have a handful of Rapidweaver and Blocs sites left, that have Pulse 4 & Pulse 5 still installed and being maintained.