I think we're going to continue to see riders coming up from Moto2 that are capable of taking the fight to Marquez. These guys coming up from Moto2 are riding 600s that are only a couple seconds off the pace of the GP bikes from 10 years ago. For instance:
Fastest Laps:
MotoGP: Catalunya 2003 - Valentino Rossi - 1:43.927 @ 163.7 Km/h
(http://resources.motogp.com/files/re...df?v1_96143780)

Moto2: Catalunya 2013 - Pol Espargaro 1:46.410 @ 159.9 Km/h
(http://resources.motogp.com/files/re...df?v2_65d33be4)

These guys coming up from moto2 know how to race, and they know how to battle, because, except for the chassis, they're all basically riding the same bike.
Top this off with the fact that Moto2 bikes have the bare minimums in terms of electronics. They don't even have TC!
Moto2™ rules allow for data loggers, ECU and timing transponders supplied by the organiser, with a maximum total cost of the ECU's components set at 650 euros. No other electronic control nor datalogging systems are allowed on the bikes.
http://www.motogp.com/en/MotoGP+Basics/moto2

Sadly, many of the Moto2 riders coming up to MotoGP haven't been given the golden ticket of a Repsol Honda like Marquez, and so it's hard to really tell how well they are performing in comparison. There is no doubt that they have some growing pains to deal with when they straddle a GP bike. Too much still depends on the capability of the machine on which the rider finds himself in MotoGP, hopefully we'll see a better balance in 2016.

I disagree about Marquez having a better bike than Pedrosa, to an extent. I think it has more to do with how Marquez has his set up versus his teammate. You could easily tell last year that Marquez continued to use the Moto2 style of backing the bike into the corner. He can ride his RC213V faster and looser than Dani, in most respects, because he sets his bike up to do so. His win at Mugello last week was due to him following Lorenzo around during free practice and then asking his engineers to give him a taller 6th gear. He even said that during his post-race interview.


This also doesn't take into account the numerous physical ailments a lot of the aliens have dealt with this year; trouble with the new tires; and fuel management issues due to the 21L change. Granted, I don't think anybody has a chance at stealing the championship from Marquez unless he suffers a serious crash and misses a few races. But I think we're going to see a lot of his competitors come back into proper form as the season progresses. As they get their kinks worked out we'll see them actually be able to take the fight to Marquez much like what we saw here at Catalunya and last week in Mugello. I'm all for seeing some more exciting races. There's nothing like holding your breath up to the finish line!