Hi and welcome to the forum @Anonymous User,
The good news is, Elementary has been renewed for a sixth season. The bad news is, it's not been officially confirmed when it's due to commence over in the USA (probably sometime in January 2018).
That being said, if previous seasons are anything to go by, all the episodes from all the previous seasons will be made available on the NOW TV service a few weeks before the next new season commences as a box set.
Cheers
