how is the owner mode now, do you get new two year olds every season?

Personally I think it's very playable. You start of with 1 owner with 6 horses, however you get offers from the very first day from anything between 2 to 4 new owners from my experiences. They don't take horses away nilly willy and they do give you a fair chance of making them happy. You do get offered new two year olds at the beginning of the new season but not necessarily from your existing owners. A few glitches here and there which may new sorted with the latest patches. This mode has been vastly improved mate and I'd definitely recommend having a go at it!