If they're insistent on expanding their product offering, I'd like to see Porsche introduce a different brand to service a lower-end market the way BMW did with MINI. There could still even be platform sharing, but a large part of why Porsche can get away with selling a car like the Boxster (as brilliantly executed as it is) for such a lofty price (particularly when you start adding options) is because it is a PORSCHE. The prestige and cache can carry it even cars like the Corvette or GT-R can walk all over it in performance for similar money.
Having been produced for a dozen years with essentially the same shape, sure we see a lot of Boxsters around. But to buy a new one is still well beyond the reach of most people -- and even used, to keep them properly maintained requires a dedication and deeper pockets than a similarly priced sports machine from Toyota or Honda, for instance. This still adds to the exclusivity of having a Porsche, but if a fleet of $35000 Porsche compact sedans and SUVs were all over the place, I wonder how that would affect Porsche's profitability-per-car which is among the highest in the auto industry from what I understand.
Interesting side-note: the Porsche website (under the pre-owned section) says that over 70% of all Porsches ever made are still on the road! That speaks to not only how well built they've been, but also just how passionate the owners are about their cars, not only because of their exquisite driving experience, but also likely the way it makes their owners feel about having an exclusive automobile.