@ Ludens:
I wouldn't call Uirodusios (naked spearmen) "wimpy". If you compare them to Gaesatae, sure, but look at them compared to Gaelaiche (celtic spearmen). The clothed variant have sligtly better protection vs. missiles (armour 2, skill 10, shield 3 vs. armour 1, skill 12, shield 2), but have lower morale (11 vs. 13) and lower mass (1.05 vs. 1.15), whatever that is good for. Plus, the naked variant scare infantry and have better stamina, and are recruitable right from the start. All that for 42 mnai more a turn.

@ Redmeth:
Do you know if they will do something about the temples? If I remember correctly, not all the temple variants that the Cassae can build will increase the temple count (for the "Time of Soldiers" reform you need five max level temples, among other things).