Infamous Innovator/ROM researcher @SciresM tweeted earlier this evening revealing new information he discovered about the up-coming update to Pokémon Bank and Poké Transporter.
In his next few tweets (by now SciresM had shared the news on Project Pokémon IRC too), he confirmed support for newly released: Pokémon Ultra Sun and Ultra Moon and Pokémon Gold and Silver, which were released back in September for the Nintendo 3DS Virtual Console. As a welcomed bonus, it appears that Poké Transporter was updated to add support for [unreleased] Pokémon Crystal on the Nintendo 3DS Virtual Console.
One more thing was brought up by SciresM in Project Pokémon's main IRC channel (#projectpokemon); the event-only Pokémon, Zeraora, was referenced in the text dumps for this update! No word yet on an official date for that event Zeraora.
At the time of writing this, the official Pokémon Bank website has only updated their Pokémon Bank + Poké Transporter "map" (shown above) and current details for the services are still in need of an update. It reads as follows:
On the other hand, Nintendo's 3DS support page (Japanese) shows official announcements for Pokémon Bank and Poké Transporter v1.4, sans mention of Pokémon Crystal.
Pokémon Ultra Sun and Ultra Moon have been released today, and with them comes some relevant site updates.
Pokedex
For the past few months, we've been working on a Pokédex containing information from Pokémon Sun and Moon, and we're now ready to release it along with support for Ultra Sun and Ultra Moon. From here we will continue working to make it even better, so all feedback is appreciated, including feature requests and bug reports.
Ultra Sun and Ultra Moon Pokédex
Sun and Moon Pokédex
Pages
A few weeks ago, we opened a new section to house information about games like Pokémon Sun and Moon. Thank to our pages team and some helpers, we're now ready to open a subsection for Pokémon Ultra Sun and Ultra Moon. This section will be updated periodically as new information is discovered and documented, and if you would like to help write some of these pages, we have some openings on our Pages Team. Anyone interested should fill out the application after registering and reaching a post count of 50.
Staff
We have some new additions to our staff: @Cecillia has joined our News Team, and @Reisyukaku has become a moderator of the ROM and RAM editing forums.