I'm not too sure about the truthfulness of this rumor.
Along with other stuff already mentioned, why would 2014 be the year of Yoshi? This year of Luigi has significance; Luigi exists for 30 years this year. The year of Zelda in 2011 had significance; it was the franchise's 25th anniversary. 2014 would be nothing for Yoshi; Yoshi's 25th is in 2015, 25 years after Super Mario World in 1990.







