Normal
Lets say your dealer got 4 allocations for 2018 (they could have gotten 2 or 25 allocations in reality, I'm just using 4 for and example) and you are the first allocation or first person to give a deposit, then you'll be getting scheduled soon, but lets say you're the 4th person in line, you probably won't see your truck until this time next year. I would suggest asking your dealer how many allocations they have for 2018, and what number you are in line.