The whole idea behind the creative cloud is to give you all the software under one umbrella. Features are deprecated for a number of reasons not least being that there are better alternatives from Adobe. Like Sudarshan said, do try out Edge before you feel disappointed.
Edge Animate is much more powerful. What's more, you could get a perpetual license to version 1.0 of Edge Animate even with a free Creative Cloud account. I'm not sure if that offer is still available because the current version of Edge Animate is now 1.5, but it's worth checking if you don't have a full Creative Cloud account and you're looking for a replacement for the Timeline panel. Of course, with a full Creative Cloud subscription, you get the latest version of Edge Animate and any future updates.