Well, can you?
Q, W, R, I, ?
Make sure you provide your reasoning. I can ensure you there is a pattern here.
This is probably a simple one, but good luck as always!
I think the answer is simply
the letter "F"
the sequence has Q followed by O (the result of removing one line from a Q), and then E -- which I therefore follow with the result of removing one line from an E.
(But OP has edited the question and this clearly no longer works.)