像我这种Visa过期，但居留合法的情况，回国或者去Canada转签被拒签的风险是不是很大？
-Same thing as you do in China. You are fine because your I-94 is valid (you file the I-539 before your spouse is laid off).
据我所知，如果我I-538成功的转换了F1身份，有什么办法能解决Visa过期的问题吗？
-Visa expiration does not affect your sttaus in US. You just need to appy for a new visa in a US Consulate outside US if you leave US. You are confused between visa and status. Visa is only used to enter e.g. US. Status means your legal stay in US which is is indicated in the I-94.
请问，这次转签会不会影响到以后的身份转换，比如毕业以后转换成H类签证。
-No.
