I think you're right. If they have been taken down due to lack of demand then yeah, Dublin dates would look more and more likely. They've obviously ear-marked June and July for 20 shows with intention being all of them to take place in London but if demand doesn't turn out to be high enough it's very likely the remaining 10 shows will go to the likes of Dublin, Berlin, Copenhagen etc. Anywhere there's an O2 venue anyway.