I dont think so if working on ead
1-94 is for status. If 485 has been filed for, it gives the adjustee stay until adjudication. when working on ead, one need not do any renewal of I-94 because they have filed 485. When you entered on H1, if the date on the 1-94 is expiring,then one has the option of continuing work on ead or file for renewal of I-94 (i do not know about this I-94 renewal stuff).
any other info on this will be appreciated.
Thank you.