You're probably right. I think Brindy considers Jarvis like his first born child, and the Canes organization will be thrilled to extend him for 8 years when it comes time.Canes are IMO sort of a fusion of both the Tampa philosophy and the Patriots' "creative destruction" philosophy. They are going to sign Necas and Jarvis to max-term deals, though Jarvis will likely bridge the first two like Necas did. Where the Canes differ from Tampa is that they are much more strict about not going over a certain line to keep non-core players. Tampa is more comfortable, for example, about giving someone like Nick Paul a 7 year contract.
For Necas, I just have a hard time squaring away how he fits on the team. Come playoffs every year, he is a net neutral at best, and his speed and agility don't seem to be utilized properly. He's got insane skill but it just isn't clicking like you would like. The best move is probably to hold on to him and patience will pay off in time. If the right deal comes along, as others have said, I could see Necas being the central piece. But the likelihood of us getting a Pettersson or any upgrade on Necas is low.