Quote Originally Posted by TheAardvark View Post
I believe that Modern is why they won't reprint them in any kind of normal set. WotC has mentioned in the past the problem with mana being too good in formats that aren't truly Eternal, and I don't think they'll reprint the ONS fetches in a Modern-legal set because of their hesitance to make Modern's mana even better.
Except they (well, Tom LaPille anyway) noted that it was odd that Modern was starting out without the allied fetchlands and indicated that this would be changed at some point in the future. As you can see from here:

"As with any format, there are some cards whose conspicuous absence will be felt. In particular, the Onslaught fetch lands feel like a strange omission, when the Zendikar fetch lands combined with the Ravnica dual lands will likely be important to the format's mana bases. I admit that it is strange. However, right before Zendikar released, the format contained only Onslaught fetch lands. I played many Extended tournaments with a green-blue deck that would have loved the option to find a Forest with Misty Rainforest, but I made do with Polluted Deltas, Flooded Strands, and a few Breeding Pools. For now, the lack of allied-color fetch lands would be one of the format's idiosyncrasies. There would be others that we would discover over time, and that's okay too."

Quote Originally Posted by Dice_Box View Post
Maro has said on his blog that Wizards will not print half land sets in blocks anymore. He also quite blatantly said, when fetches are reprinted, they will be as a set of ten.
Where did he say that? I know he's mentioned how they want to give people access to 10 dual lands whenever possible, but not anything about them not printing half land sets in a block. And unless there's some extremely recent post I missed, I can't think of any "blatant" claim that fetchlands will be in a set of 10.