This from mylespaul.com :

"The Min-ETune auto tuning system, now called “G-Force”, will be available as a standard feature on most models. All 2015 Les Paul guitars will feature a special logo to commemorate the 100th birthday of Les Paul himself; and a removable Les Paul Pick guard which requires no screws. As for the specs for the new lineup, Gibson plans to increase neck width and upgrade the nut to a brass “Zero Fret Nut”. All models will now also feature Pearloid Inlays and a thicker fingerboard – made from a piece of rosewood that is sanded, buffed, and then treated with an oil for smoother playability."

The MAP (manufacture advertised price) price rise on a LP Standard is reported to be 29%. The post from the above link calls that the most notable of the price rises possibly indicating it's the largest. Whether that makes them overpriced or not depends solely on whether the Gibson manufacturing run sells.

As we all know, there's a huge difference between list price and street price so we'll have to wait and see how Gibson's price increases actually play out. Meanwhile, there's lots of 2014s out there...Sweetwater has already started discounting theirs.

Keep watching...I've read we can expect price increases from all the major manufacturers with increasingly expensive tone wood just one of the reasons.