I wish they would slightly round the edges, at least near the palm guard area. The sharp edges kind of dig in after a while.
The first MBP's appeared in 2006. That exact design had been used in the Powerbook G4 line (Apple's PowerPC notebooks from 2001 to 2006). That design stayed up until mid to late 2008 with the unibody MBP. Count it however you like, that's a whole 7 years without a hint of a design change.
What do you mean by redesign? The design language or the engineering?
The MBP has gone through several major redesigns over the years, the last of which is the rMBP form factor. There's a good chance Apple has a revised model lined up for Broadwell and Skylake's 14nm process. They run cooler and use less power, which makes it possible to make them thinner and lighter. An opportunity which Apple rarely leaves untouched.
If by redesign you mean the grey/black color scheme, that could be around for a while. The grey/black color scheme was inspired by the iPhone in 2007, so the next major design language could be introduced with a completely new product category.
Maybe iWatch?
Personally I would like to see them add touchid, gps, and a cellular chip with sim so that I can pop in a sim and have direct access to internet without using my phone as a hot spot or using my phone's data.
if there was going to be a redesign this year , we should have gotten some sort of leak like the time we were expecting the retina to come out in 2012 or something
More than a redesign I would like to see a 17" MBP coming back to market with a retina display, that would be a really nice option to have.
Not going to happen, apple killed off the 17" display for a reason, I don't see them bringing it back.
I'm guessing a real refresh with that might come in 2016. We will get the force touch in the 15" rMBP this year, but I don't think we will get the new keyboard or any major design overhaul until Skylake, if not later. The Broadwell update is turning out to be turds on crackers and really kind of a joke with Intel's delays, so I think a lot of people are just going to sweep Broadwell under the rug and look towards a real update with Skylake, and that'd be a great time to do a full overhaul on the machines.