Well,
I spoke with the Community Manager about this topic. The best we can offer you with the frequency of the answers of the devs is 2 months instead of 3. Below that there is a lot of chance that the devs don't have enough time to answer.
In any case I hope that the principle pleases you, knowing that it's not a compensation to the old cat in line with the CM. In addition there are some differences, this topic deals with existing in-game features while chat online could receive any questions if I remember correctly. If you do not like, no problem, we'll see what we can do.
Regarding the future of the chat with the CM, it will be a surprise.
Regarding the wheel of fortune, she should be back in the fall if all goes well. I said "if everything goes well".
For the new engine, I understand the frustration, because of the delays everyone is not always equal. I don't have a specific date but everyone should be transferred to WebGL. This doesn't mean that everything will be fine, but at least everyone will be in the same situation and there will be no advantages over others. The project is going ahead, maybe not as you wish but I think that's the main concern of the devs.
Concerning a compensation announced apparently, I will not advance on this information but I hope that there will be one for WebGL testers who met retards, or who may still meet some delays.
We are listening to any suggestions for this forum (don't give them on this topic) provided that they are constructive.
Concerning some erroneous information, although it doesn't excuse anything I think that creating dozens of similar topics favors this problem. In addition, for some features we get new information as time passes, our assumptions can turn into truth or can be partly changed.
I hope I answered your questions.