Hasbro made it very clear that vintage would last for 2 years back in 2010, so we all knew that it would end in 2012. It's no surprise.
I can understand how this might be confusing for those people who jumped on board in 2010 and didn't pay any attention at all to how things were done in the modern line for the 15 years prior to that. Hasbro has redesigned the package almost every single year since 1995. Vintage was the longest they had kept a single card design.
Retailers like for the product to look "fresh" and they prefer that the packaging gets redesigned every year.
Here's how it's broken down:
1995-96: orange POTF2 cards
1997: green cards with hologram stickers
1998: green cards with slides
1999: red Ep1 cards
2000-2001: green POTJ cards
2002: blue Saga cards
2003: blue and gold Saga cards
2004: VOTC and black/silver OTC cards
2005: red Ep3 cards
2006: black and silver Saga2 cards
2007: white and black TAC cards
2008: white Legacy cards
2009: red and white Legacy cards
2010-2011: TVC and blue/orange SOTDS cards
2012: TVC and "Darth Maul" MH/DTF cards
So, as you can see, with only a couple of exceptions, the package design has changed just about every single year.