Conversation so far:
Who was replaced in Helloween during the 2000s?
Helloween parted ways with guitarist Roland Grapow and drummer Uli Kusch.
Was someone new brought in to replace Kusch and Grapow after they left Helloween?
They were replaced by guitarist Sascha Gerstner and drummer Mark Cross.
Did Helloween release a new album in the 2000s?
Rabbit Don't Come Easy, in 2003.
Did Helloween go on tour during the 2000s?
Helloween completed a successful world tour.
Did Helloween have critical success in the 2000s?
Helloween toured the United States for the first time since 1989, playing to sold-out crowds at nearly every venue.
Did Uli Kusch and Roland Grapow stay in Helloween past their 2000s tour?
Immediately following the tour, Helloween parted ways with guitarist Roland Grapow and drummer Uli Kusch.

Question: Did either of the previous members come back?
Self-contained rewrite: Did either of the previous Helloween members, Roland Grapow or Uli Kusch, come back?