There are three outsiders being talked of regularly. Eric Roy, Lindsay Tisch and Hekia Parata. I think that the fight between Tau and the top brass means that there wont be much space for any of these.
A man with a presence who would intimidate with his bearing from the speakers position. Known to be handy in an all in brawl and not afraid to kick an enemy when he is down just to make sure he stays down. The best of the outsiders, and with a beautiful .338 Lapua as well.
Too short, too out of favour and too past it.
Would be a good speaker as she is a brilliant speaker herself, and unafraid of ratbags like Winston and Trevor. Her imperious manner may not work well in a referees position. Moving Hekia to Speaker would allow Nick Smith to come straight back into cabinet and take over the environment portfolio, and would remove the conflict of interest issues around Wira being party president.
My sources are telling me that the only one of the three with any shot at being Speaker is Hekia because it is convenient, and she hasnâ€™t covered herself in glory as minister.