I just don't see new gpu's being a reason for a jump in difficulty. Price and performance is going to prevent them from being mass bought for the sole purpose of mining. Maybe I'm wrong, but I won't be buying any.
there are many idiots out there hehe, imagine one rtx 2xxx for each idiot, reminds me of some idiots were planning to buy a 32 cores cpu to mine just like many bought titans v at $3000 to mine.