Earlier this year, Steam users were treated to the surprise releases of both Bayonetta and Vanquish. The games were both able to run with 4K support and enhanced frame rates, instantly making them the best versions of the game to date. A few retailers over in Europe have revealed pages for a Bayonetta/Vanquish Dual Pack that will release on Xbox One and PlayStation 4.
Alza, Film-Game, and Estelacnejsie are the retailers that have posted the store pages for the Dual Pack. Here's a screenshot from Alza:
It's worth noting that the "Edition" tab you see in the screenshot doesn't actually give any other options than "Double Pack," so it's unclear if the games will be purchasable separately. It's quite possible that digital copies will be able to be bought separately, while the physical retail version is Dual Pack only. Resident Evil: Revelations is doing something similar with their digital/physical purchasing strategy, so it's something to keep an eye on.
All that said, it should be specified that this Dual Pack is still unconfirmed, so take it with a grain of salt.
Source: [Alza, Film-Game, and Estelacnejsie via DualShockers]