So... I think Natsu has "woken up" in some sort of a dream. Since there is no Wendy and Old-lady-that-maybe-was-pretty-very-long-time-ago.
And lol of all the things he asked Elfman it had to be his sisters... Now we get to see 100% rage of sister-complex!
Also get to see how much Elfman improved during his training next week.