yes its true
-new shiny form (was planned for usum)
-new region is sort of conected to a previous one (think about the hgss arceus event)
-new region is bigger than kanto+johto together
-109 new pokemon (incl. meltan, melmetal zeraora)
-box legendarys have both another form (involved into story, kind off like giratina in platinum)

you will hear from me again

reveal is next week (not the traditional way)