Hmmm... I am looking forward to the new series, but also a part of me is wishing that they would just stick with the main and most popular books, Warriors.
Seekers was not as interesting for me, (sure, I still loved them) but I preffered the structure of the Warriors books. They have clans with rules, and to me they seemed just... better than Seekers. To be honest I would preffer more Warriors books (and not the Manga). There is still so much to be told, and it doesn't have to be in chronological order either. They could write an arc about Tigerclan, etc.
But, saying that, I will still eagerly read the new Survivors books, anything from an awesome author(s)