The plan as always was set by the Devs to launch with a monetized store for cosmetic assets. As nothing like that would be implemented during testing, it is not currently a priority, and besides, cosmetic skins and such and a monetization store are the easy part of development. They already have the store on the website that lets you buy some decorations with foundation credits, so they've already got the store up and running, just not implemented in game.
As to premium, that's what VIP access is. They have already sworn that they won't have any Pay-to-win microtransactions, and I for one an happy about that! They have also stated that they are ahead of many of their monetary goals, especially with the new investors, so it isn't a huge concern. Yes, devs always need money, but being ahead, they can focus more on game mechanics over additional cash grabs right now,