Hi perth,
Welcome aboard OFF
I can understand your question as sound financial thinking
But the OFF Devs never post release dates until release is immenent
I'm not a Dev but have been around since P1 days so here's my best estimate
P4 is in development but this sim is based on quality not deadlines
Most of the current P4 talk has been initiated by us end-users
We realize if you don't get your suggestion in early, there's little chance of it making it into the next Phase
I'd say there's still quite a bit of programming to do, alpha/beta testing, tweaking etc.
P3 is well worth the investment and is a huge advancement over P2
...but it's your nickel
HTH,
P.S. Oh, almost forgot ...new guy buys the drinks!