Pundi x will have its own blockchain. I have no doubt about that it's just that the time hasn't been confirmed yet
Because large projects must be independent it is not appropriate to hitch a ride on another blockchain I'm very sure they followed TRON's steps
If they surely have plans then they have really delayed about it. It should have happened within 2018 max when the heat and hype was still on... and now that the price has plummeted, I am thinking that they will need to carry out another form of fundraising to get funds to create a new blockchain. It won't be cheap.