Number of columns is not linked directly to the problem, as if these additional 60 columns will contain no data, the size of moved data between servers will not change much.
You might have 60 BIT columns added, which would just add maximum 8 bytes to each row, or just one column with VARCHAR(MAX) and each row in your table will contain 2Gb of data in this new column, then...
So, what about change in data volumes in your case?
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