Thanks for the compliments. The new version is progressing quite well, the second beta is going to be released within a couple of days. If all goes well, a public beta can be put out a couple of weeks after that.
Make no mistake, the game has evolved much beyond even what I had planned when I dusted off the map. With proper support from the Beta Team, Element TD 4.0 will easily be like no other TD you have played.
It should be noted that it is now 4.0 in development, there are too many changes to release a final and be done with it.