That is not true. Levitical sacrifices can only exist at the Temple. The Book is full of examples of sacrifices in the wilderness - Even to the description for the specifics of building an Alter to Yahweh, for that purpose.
Christ takes away the blood sacrifices for the remission of sin. He does *not* take away all blood sacrifices, nor other sacrifices. In fact, those sacrifices are predicted to take place in the Millennial Temple.
Time will tell.
Please post the scripture that states that there will be blood sacrifices in the Millennial Temple.