I have gone to DL on the last two Easter Sundays (2017 and 2018), and both have been fairly reasonable crowds even though we haven’t even arrived until after church. I hesitate to say “low crowds” and get expectations up too high, but they’ve been on the lower side for sure.
That certainly doesn’t guarantee that the same will be true this year, but since the ticket deals are blocked out that weekend, I suspect that at the very least, it won’t be slammed.