The delay is of course bad news, but on the other hand, in 2019 the market will be much more stable and HoloToken will have the opportunity to rise well in price.
Holo Beta should launch early 2019. Once sufficient testing has been done, the swap will commence. The details of the swap (step-by-step of how it will be carried out) have not been release. What is certain is that there will be plenty of announcement leading up to the swap and the swap will be open for at least 6 months (potentially longer).
Shame it's not being launched earlier but I'm patiently waiting regardless. Better released when ready than releasing a buggy version though.