Search the forum, there are multiple threads that tell how you can get them back (save game compatible!), you can get back:

Ordmalica, hammer warriors, same area of recruitment as Ebherni.

Dubosaverlacica, the units you want. I think second best units.

Dosidataskeli, the absolute strongest unit in game, recruitable in Cantabria, Vasci Armoured shock infanty. They beat everything you send against them (they own: TABs, Gaesatae, Carnutes, Pedites, Iberian Assault and many more). Only recruitable for the Luso's.

~Fluvius