Yes I know Construct 2 is way behind in making plugins for AD monetizations. While other game making programs include most AD networks , we don't have even %25 of the available ADs networks . Most people have so much trouble with IAP and AD networks they have to buy 3rd party solutions in order to run them. Even the 3rd party solutions are starting to break. I personally didn't buy Construct 2 until the ADsToApk service was made by an outside developer who I met in another android forum. So I can use almost any AD service in my games.
Honestly the forums are not even busy anymore the last 2-3 months its been kinda dead. Mostly the "how do I" section is the only one thats active a little bit. The only reason thats slightly active is Construct 2 is free to download otherwise the forum would be even more dead. I can't mention names but I know some developers that have moved on to other tools already because there has been little progress with Construct 2.
By the time Construct 3 comes out there probably will not be much customers left. Thats why they want to charge existing customers for it because they know they can't really attract to many new customers. At the rate things are going I doupt there will even be a Construct 3. It like a magical project that exist only to keep developers calm as to why Construct 2 isn't being worked on more. Not even a slight hint of what features might be on it, sounds real fishy to me.
If I had the budget I would have brought Buildbox right now but its way to expensive. Even I lose faith as the website itself has not been updated in years. It feels like a dying project on it last leg. Hopefully though I am wrong , hopefully something magical will happen.