Task: Analyze the tweet's emotional connotations and classify it as either 'neutral or no emotion' or as one or more of the specified emotions (anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust) that best portray the tweeter's mental state.
Tweet: IDC predicts that by 2020 the term cloud will no longer be used...'\n\nIT Managers and Administrators everywhere will rejoice.
This tweet contains emotions: 
joy, optimism