Just a check with Web that you're OK with this change and it doesn't go against any plans. If you're OK, I deploy it later today.
@ovasileva I think this is probably okay, but can you confirm from the product side that enabling WikidataPageBanner extension on trwiki will not interfere with any plans we have? It looks like it is already enabled on :
cawiki euwiki glwiki ruwikimedia test wiki test2wiki and most wikivoyages