Bandai Namco Games have been experimenting a lot with console free-to-play games, to mixed results. On the PS3, you have Tekken Revolution (waiting for energy), Ace Combat: Infinity (grind dozens of hours for a Raptor), and Soul Calibur: Lost Swords (single-player only). And on the Wii U, you have Tank! Tank! Tank! where the microtransactions is the retail game split in to chunks.
Depending on how much Nintendo has a hand on Project Treasure's development, we are either seeing a grinding, energy-timer slog or a "free-to-start" game echoes the shareware model of old. With Pokemon Shuffle seeming to have an energy-timer system, Nintendo is not opposed to such things.
I find it quite nice that Nintendo and Bandai Namco are sharing such a close relationship these past few years. Bandai Namco haven't been in my consideration for potential Nintendo partnerships in the past, so it is a nice surprise to see them working well together on Nintendo platforms.