Yeah you should be able to I mean I've got a 1070 with a Ivy Bridge i5 and I only bottleneck in BF 1 sometimes, if you get a 7700k it'll hold up for at least 3 years, I feel that waiting for Zen+ is going to be easy
Think about it 7700k is fast IPC + overclocks better than what I've got along with 4 extra threads.
With respect the 1080ti is a different beast compared to the 1080ti. Your i5 will certainly hold it back.