#1 is fine-- a musing on the future.
I wonder if she'll come here next Tuesday night.#2 has no such specific meaning for me; it is simply a musing on habit*.
I wonder if she comes here every Tuesday night.
The use of the phrase
I wonder if seems to me to be independent of the tense of the dependent clause.
*NB: this includes any use of
come as vulgar slang.