It is time to move beyond the model according to which speech production and recognition is restricted to two specific areas of the brain, as research does not support it anymore. The Broca-Wernicke-Lichtheim-Geschwind model, as it is called, was developed in the 19th century, requires substantial revision, as stated by Pascale Tremblay, in a recent article in the Journal Brain & Language:
Tremblay P, Dick AS. Broca and Wernicke are dead, or moving past the classic model of language neurobiology. Brain Lang. 2016 Nov;162:60-71. doi: 10.1016/j.bandl.2016.08.004.
Reas an article about this in Le Fil: Des aires d’autrefois (in French).