It might be revealed tomorrow or maybe later in next months corocoro but the Pokemon Company will be releasing a new type. It is called the "Cosmo" type.
Pic not related

English: Cosmo
Japanese: Uchū
Chinese: Yǔzhòu

A few Pokemon will be added to this classification + some new ones
(I wasn't able to see all legendary classification or if they changed it)

>The Orginal Dragon (3 dragon fused) Dragon/Cosmo
>Marshadow Dark/Cosmo
>Cleffa evolutionary family Fairy/Cosmo
>Staryu and Starmie Water/Cosmo
>Lunatone and Solrock (ALT VERSIONS) Cosmo/Rock
>Elgyem and Beheeyem Psychic/Cosmo
>Lugarugan (Night From) Rock/Cosmo
>Minior Evolution Cosmo/Flying (It sheds its skin for good once it evolves)

--There are more older ones added as well as 2 more new cosmo types but I won't spoil to much

Ultra Beasts are not Pokemon but do come with typings.
UB01 - Cosmo/Water (Due to the nature of fluid like changing)
UB02 (Beauty) - Cosmo/Bug
UB02 (Expansion) - Cosmo/Bug
UB03 - Cosmo/Steel
UB04- Cosmo/Dragon

-There are more but I'll only reveal these two.
Look forward to some screenshots tonight and see you all soon ;)