I think that they will definitely announce more late-April/early-May dates. The reception for the first month has been so strong that I wouldn't be surprised if they increased the price and announced another month of dates in the next couple of weeks.
And even though we're all excited by the prospect of
Disneyland opening, it's still a ways out. And with the parks only able to operate at 15% capacity with limited indoor attractions, I think Team Anaheim likely sees A Touch of Disney as being a more profitable short-term solution.