Characters come and go, revamped and revisited. But as long as you enjoyed them, remember them and continue to appreciate them, then that character, your hero or heroine, will always exist.
Didn't the same thing happen with him and Seven Soldiers? He drew the first issue of Mister Miracle and then had to stop.
Please for the love of God DC, do not change up the creative team on The Flash. Those two guys are perfect for the title and The Flash has ended up being in my top 5 books every month which really surprised me considering I was only casually interested in the character before the New 52.