Q: Does anyone know if it will be possible to change the band from the watches?

Apple - Apple Watch

Yes, interchangeable wrist bands is one of the main features.

http://www.apple.com/watch/design/

Yes, you can change the bands.  I have the sport watch with the silicone bands and I have bought lots of different colors

on Amazon for about $15.00 each.  They are the same as the Apple bands except slightly thinner which I like better.

Also, check them out on Ebay.  I bought some for about $3.00 each and they are exactly the same as the ones on Amazon.

Amazon also has a company that has 20 face plates in different colors for about $20.00 and a charging stand for the watch...great value.

I don't think Kappy needs any advice, as he was giving it, 11 months ago.