Most probably not.
Find out why :

The Basques, the Catalans, and Spain: Alternative Routes to Nationalist Mobilization. London: Hurst, 1997 [US paperback, Reno, NV: University of Nevada Press, 2000]

   'The smooth transition: Spain's 1978 Constitution and the nationalities question', National Identities, Special issue on 'Peripheral Identities in Iberia', vol. 4, no 3, November 2002, pp. 223-244  [DOWNLOAD]

   'The Spanish federalist tradition and the 1978 Constitution', Telos, No. 112,  Summer 1998, pp. 125-144 [download]

 'Autonomous Communities and ethnic settlement in Spain', in Yash Ghai (ed.) Autonomy and Ethnicity. Negotiating Competing Claims in Multi-Ethnic States Cambridge: Cambridge University Press, 2000 [ISBN 0521 78112 4 hardback/  ISBN 0521 78642 8 paperback]
 

As things stand now, the trend is towards more autonomy.  However, it all depends on the policies adopted by the central government.  In 2001, José María Aznar's neo-conservative government  'imported' the US-led 'war on terror' into Spain. Then, public opinion radicalized and centre-periphery relations became more polarized. In this atmosphere, pro-independence parties, notably the Republican Left of Catalonia ( Catalan: Esquerra Republicana de Catalunya, ERC) , gained unprecedented popularity.