On June 29, the Delaware Senate Elections & State Affairs passed HB 89. It moves the non-presidential primary from September to April. It had already passed the House.
The version that passed the House does not move the deadline to qualify a new party. But there is a Senate amendment that would move the deadline to create a new party from August to March. Presumably the full Senate will decide which version of the bill to approve.
Delaware is in the Third Circuit, which ruled in a New Jersey case that an April deadline is too early for newly-qualifying parties. Council of Alternative Political Parties v Hooks.