[Moonliner]

Now that DLR has two parks with Early entry, I wonder how traffic patters will compare with what happens at WDW.

In short, the park with early entry gets most of the traffic which somewhat lightens the load at the other parks for the entire day. Of course it's most pronounced earlier in the day but still noticeable right through till closing.

I'd guess you would see the effect early in the morning, Disneyland will be less crowded than average on Tue, Thu, Sat and Sun mornings but given the ease of switching parks at DLR little or no real difference later in the day compared with WDW.