Think they'll do it again? I doubt it... I think WIBC has some lasting power that Radio Now didn't, and I think WFNI will be a good format for them as well... the sporting format is popular, and if you combine that with the strength of the various sports carriage that 1070 has (Pacers, Colts, IMS, etc...), I think you have a strong format there too.
The only thing I can see changing is if there is eventually a mandate to roll radio from analog to digital, much like the pending TV cut-over in '09... that might motivate shuffling some things around, but I doubt that would ever by mandated so I don't see it happening either.
UNLESS Emmis buys a 50k watt station from someone else and decides to move WIBC to that, I don't see much changing around Monument Circle for awhile!
BTW... seems weird to hear Garrison on a half-hour earlier now.