Ok. This is actually not a bad suggestion because I know A LOT of people that would love to go back to the 'good old days' chests. However... I find that this would be well too much of a hassle for something that, less than 50% of the community actually wants.
I believe that although it probably wouldn't be the hardest thing in the world to do. It would just end up creating a bit of havoc on MCSG. More than 50% of MCSG's entire player base, is off of the forums. And most of the people off of the forums are players who probably didn't get to experience the V1 chests. This is the reason that I think if we were to change the servers so that there would be a chance that maps with V1 chests would get picked, the new in game (non-forumers) players would not be very accepting to this big change.
However, I do like this suggestion but I do not think it will be applied on the servers as majority of the player base would frown upon it. Good idea though.
(These are my opinions)