http://imgur.com/a/OuoVH

How Did Magic Perform in 2015? What's The Outlook For 2016? From Hasbro's 2016 Investor Day Update

This is an important factor that I don't really see people directly discussing in regards to the Reserved List. MTG is still growing at a strong, healthy rate. There isn't a good reason for Hasbro to through a wrench in the system like abolishing the Reserved List when MTG is experiencing such success. The only way Hasbro/Wizards will remove the Reserved List is if MTG goes in the red and they need a gimmick to regenerate interest. The conspiracy theorist in me thinks that this is the reason the Reserved List wasn't abolished years ago - it's the equivalent of a rainy day fund. If Hasbro's/Wizard's market studies ever show that MTG is losing its appeal they'll announce its removal and we'll see dual lands in standard and FTV: Reserved List. This could take years of course, but for now, I'll just be happy that at least a few people will be able to start playing Legacy.