Repharim, its not like there will be nothing left of us if we die in this world ch”v if were not tzadikim gmurim. Also we have a cheilek in tchiyas hameisim.
Actually the prophets said this Geula will be different.
Yishayahu 27, 13
??????? ???????? ??????, ???????? ?????? ???????????? ???????? ???-????? ?????????; ???????? ??????????? ??????? ?????, ?????? ??????????.
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Rambam Tshuva 7, 5
???? ?????? ???? ???? ????? ????? ????? ???? ????? ???? ?? ?????? ????? ???? ?? ???? ???? ?? ?????? ???’ ???? ?? ?’ ????? ??? ?’ ????? ???’: