Looking towards LBL the usual contenders are the more explosive GC-climbers who contend for podiums in the GTs, sprinkled with a few punchy one-day riders on top form.
Among the LBL contenders Gilbert is the one who does best in AGR, relative to the general LBL competition. So the AGR performance does not give a definitive indication of Gilbert's LBL prospects.
However, one can approximate his 2014 LBL prospects by comparing his annual AGR/LBL performances and make some sort of fit. This is my rating of his performances 2010-2014.
Gilbert-AGR: 2012 < 2013 < 2010 < 2014 < 2011
Gilbert-LBL: 2012 < 2013 < 2010 < [?] < 2011
Based on previous performances he should be stronger than in last years LBL. In 2010 he attacked with A.Schleck on roche, did not match Vinos attack afterwards, despite trying to bridge, then doing one last attempt to close the gap at st:nicholas dropping valverde and evans like stones. He definitively was one of the strongest contenders that edition, having significant amounts of dry powder at nicholas of which he had none left in 2013.