I have said this already but the move to Sunday's has always seemed like a death slot to me so it has me worried also
Also on SpoilerTV they have like a cancellation predictor table which has Elementary down to be cancelled. While they do state it is not 100% accurate they do get a lot right which worries me further. All we can do is keep our fingers crossed. If not I only hope they are given fair warning so they can end it properly.