There are so many self-publishing dilemmas that we authors have to constantly consider, but the problem is, there are usually a number of differing opinions. I've been advised that now is not the time to worry about the follow up to such a new title. However other "experts" suggest if at all possible that you write book after book without letup.
This can be a hard choice to make when you know that the success of the first book is crucial to what happens with the second book. On the other hand, a second book can often be just what an author needs to get more eyes on the first book. As an author, I find the whole thing exasperating, but what can I say; that's the life of a writer!
Since the decision ultimately comes down to the individual author, I suggest making the decision on a case by case basis. For instance, if after publishing a book, you feel tired and burnt out, it is definitely time to stop writing and focus on something else. On the other hand, if you finish a book and you're on fire inside from the anticipation of writing the next book, I say go for it! That is how I felt at first about the idea for Predator's Revenge. Only now, the flame is starting to die down. That is how I know that I made a mistake to wait, and that is why I've decided to get a few chapters written at the start of the week. So stay tuned and look for a post on Friday. By then, I should have an update on the followup to Skipping Childhood: A Novel.