It doesn’t stop today, people!
NeoGAF user ntkrnl is also claiming that Halo 3 and Halo 4 will both be getting ported over to Xbox One.
He clarified the point, saying that there will be two versions of Halo 2 Anniversary Edition on Xbox One: a Collector’s Edition with beta access to Halo 5 and access to the upcoming Halo TV series, and the War Collection, which will include Halo 3 and 4.
What a day, eh?
Thanks to @reptilescorpio for the tip!