Question about the thoughts on the 1070

Yes, I know its an old school card but I am trying to decide if I should wait a bit for the 50 series prices drop some as I currently have the 1070 Ti. I just don't know how long until prices start to drop even if they will. Hopefully they don't do like the 40 series did and almost double in prices for quiet awhile. Anyone have any advice on what I should do? I also have the 1660 Ti Super but I like the 1070 on some games better.