A report from Bloomberg [1] warns that we'll soon be seeing a shortage of Champagne due to increasing demand from the UK, USA and Japan. High demand and low supply will inevitably lead to higher prices, which is probably a good thing for the producers. But according to the article, the Comite Interprofessionnel du Vin de Champagne [2] (CIVC) is intending to extend the Champagne region in order to increase output over the next few years.
Links:
[1] http://www.bloomberg.com/apps/news?pid=20601213&sid=aYecx0xZHX2s&refer=home
[2] http://www.champagne.fr/