Hi,
thanks for the update - Looking forward for the new release :-)
This Unity stuff does not sound too well. I wouldn't expect them to add malware into the engine. Someone would recognize it, and then Unity is ruined. However, as they seem to have chosen the way of quick money, I would expect that they reduce development, reduce maintenance, and therefore reduce quality on the long term. Many good products died this way, normally by getting swallowed by a larger company that only tries to milk out the most money of the product and neglecting further development. Therefore, it might be a good idea to switch to another engine in the long term, maybe for your next project.