[HoE] Doomsayers & templars question for a campaign

[Dan Massek <decker@phreaker.net>]

I am running a campaign in which the posse are fighting against a major
cult.  They are either Rangers or "deputized" Rangers.  I started
thinking it would be cool if a Cult o' Doom member(maybe a doombringer?)
or two were sent back in time to establish a cult which would spread
throughout the states gaining invluence, wealth, and power.  So when the
reckoning happened they would be in a better position to take control in
the future and eliminate humanity that much easier.  Then a Templar
caught wind of this, and managed to get himself sent back in time to
stop this scheme, and perhaps even help stop the reckoning.

Do you people think this is too far fetched etc.  My other concern is
would the Templar still have his/her powers?  I am thinking that the
Doomsayer would still have powers, but I am not sure about the templar
though.  My posse doesn't know much about Hell On Earth at all.  I only
have the main book myself.  Although I have ordered the Wasted West,
Brainburners, COTA, and road warriors though.

Feedback welcome and encouraged