So far as “not yet announced”, that ship has sailed.
Jeb may have to vastly rearrange the solicitation and collection of campaign cash, so he does not somehow run afoul of current campaign cash “reforms”.
But in actual practice, the supposed reforms to campaign financing are pretty much dead letter, otherwise they would have long since come down heavy and hard on Herself, Madame Benghazi, the Cold & Joyless.
And Herself has a great and abiding interest in keeping Jeb “competitive”, as he is the next sacrificial lamb for the Democrats to take down in 2016. Might be a lot harder with almost ANYBODY else now in the race on the Republican side.
Jeb is Hilderbeast's only hope. I would watch a debate between her and Ted Cruz on payperview. If it's the Jebster, it'll be a choice between Tweedledum and Tweedledummer.