I really hope that this is not their plan. Keeping the private sale running for an undefined time is a bad idea in my opinion. If they won't raise what they need in a period of one (or maybe two) months, it makes no sense to keep the sale running any longer.
Thats right. I wouldnt invest in a project without a roadmap and specific dates. The team should come up with ideas on how to fund the project, they have a good model.