A: None. Duh. Wake up and smell the PB & Jason, people.
This week's issue of PB & Jason focuses on the rumor about a 3DS redesign and/or additional attachment to the 3DS to add a new slide pad. Nestled beside these rumors are rumors of issues with Wii U development.
After that, I talk about more things, particularly those things unrelated to Nintendo. Hear my stance on Borderlands. Find out about a new trend with competitive gaming. Hear about a bad experience related to headphones and reviews! All this and more in PB & Jason Issue 53! Download it now!
Buying Nintendo handheld remodels doesn't trouble me one bit. This is coming from a person who has:
Brick GameBoy, Pocket GameBoy, GameBoy Color (See Through Violet), GBA Original, GBA SP, DS Phat, DS Lite, DSi (two colors), 3DS (Cosmo Black)
hahahahaha
Imagine how many circle pads you can put on all of those!
It's way too soon for a redesign, but given he source of the rumor, I really have to believe it. I know they also talked about a peripheral for current owners, but I have no idea how that's going to work.
(I haven't listened to this issue yet, but I felt like commenting anyway)
If they do announce it, they should get Oprah to help. "You get a new circle pad! You get a new circle pad! Everybody gets a new circle pad!"

