I always enjoyed the third versions. I liked Platinum much better than Diamond and Pearl and they are more convenient for people like me who have no trade opportunity (ignoring trade-only evolutions
) by giving a better selection *coughonlyoneadditionalfiretypeindiamondandpearlco ugh*
But, I won't bash the idea of a direct sequel and will wait until more information are given in the future.
Additionally, this would be the second game I'd be interested in for the 3DS.