I agree that the A340-200 is no longer in production. If you want a -300 you can still get it though. The -500 and -600 may now get the sales but if you want to get a -300 they will build it. This is from the Airbus web sight:
Benefiting from the latest innovations introduced on the A340-500 and A340-600, the A340-300 now also features an enhanced new interior styling with new LED lighting and LCD screens in the cockpit.
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With the further development of the range capability of the larger A340-300 and the ultra long range A340-500, the A340-200 is now only available through Airbus Asset Management.