I'll be driving and moving to another state today. So it'll be about 2 weeks before the next update. This also means I won't be able to enable donation rewards for Patreons until then as well. However, if a hotel I stay at has good enough wifi, I may be able to get a quick update in (unlikely though)
Alternative Paths for Normal and Survivor as well as 4 new Heroes are coming in the next major update. The length of these Alternative Paths will be 20 Waves, and will be around the difficulty of Impossible Mode. More news about this soon.
While I'm traveling, I'll still be able to answer any questions or concerns you guys have, so feel free to send me any messages.
Talk to you soon.