Also, larger BTC holders looking to sell will get a better price when selling off the markets to funds like the BIT, this will happen more and more.
Overall I'd guess the supply that's for sale has gotten slimmer, but it's harder to determine the supply than in the past and it will keep getting harder than in the past.
Nobody sane will pay more for BTC off exchange. Whales, funds, etc. especially
There is no incentive for anyone to sell, why would anyone sell Bitcoin when it's about to witness it's greatest year ever ? The fear of Bitcoin dying/failing has gone, people have never been as confident about Bitcoin as ever before.
Selling = using = adoption = greatest year ever.
Hodling = not using = modest adoption = same or little better than last year (at best), but with even more volatility (and that's bad longterm)