Like others here, I followed JUCE for few years, playing with it a few times, and only recently started a proper project with it (two essential parts to it, desktop + mobile), planning on getting a license in few months.
I am lucky in that I only spent about a month on mine, so I can look for alternatives, or simply forget about the idea altogether. I can't believe how frustrated I would be if I had a year's work or so and get this surprise with license costs! To me it seems the indie version should just be called "subscription based".
Subscription model only works if you get new versions (e.g. Adobe creative cloud or ms office subscription), if juce 5 will be released in 2 years (it's not a real monthly subscription you have to pay yearly subscription, it just shows price per month), then you would already pay more than professional, essentially getting the same thing. There are no gurantees.
Priority support could easily cost extra $1000 or more, but not everybody needs it, especially if working on stuff in spare time.
Projucer sounds great, but is it worth that much extra, especially at v1? Personally I would be much more productive in CLion IDE (costs $119 - excellent full featured ide), by being able to easily refactor and generate boilerplate code (not a top priority in your list thou).
If you do one thing, please change the licensing page, because as it stands it just seems deceptive (not "jucy"). When the new site went online, the first thing I checked was the get Juce page, and though $999, ok sounds reasonable, quite close to what it was (it's quite reasonable to assume that cross platform library will not suddenly charge for each platform). Only after I seen this post, I actually clicked further and found out it is actually $2997.... A minor difference.... Hopefully this was not intentional...
Overall, obviously it's your call, and if you want to target existing companies or sole devs who are 100% sure that their product will at least cover the license fees. I can't gamble $3k though unfortunately :(