He could use the '007 theme' after the pre-titles, after all, he has become 007 and not the real James Bond until the end of the movie, and it has been too long since we haven't heard that theme (It was in FRWL, GF, TB, YOLT, DAF and MR).
But Arnold could have to do some work on it, 'cause it may sound old fashioned (it may be interesting to hear it 21th century style)
it would be great if the "007 theme" was used in this movie...ie some Conneryesque reference/nod to classic bond...ie the real James Bond is back!
Welcome to the CBn forums, bsforever.