Here's hoping we don't get Nia or Rebecca.
It's a fear Mattel will push Bachmann to do them, but who would be the audience? They may be girl engines and a unique color, but nobody in the Thomas fandom (both young fans who are the shows target audience, fans of the classic show like us, and older folks who know Thomas because their children and grandchildren are into it) has any emotional connection to these new characters, and thus no incentive to buy them.
It's a fear Mattel will push Bachmann to do them, but who would be the audience? They may be girl engines and a unique color, but nobody in the Thomas fandom (both young fans who are the shows target audience, fans of the classic show like us, and older folks who know Thomas because their children and grandchildren are into it) has any emotional connection to these new characters, and thus no incentive to buy them.