Bitmain said NO to rising the limit to 128MB in November.
Anyway, this isn't a trouble: no >32 MB block will be mined in a near future, so raising the limit is not a problem. However, new OP_CODES could end in a chain split.
Only if miners actually include transactions with new op_codes into blocks. The split will happen if part of miners use Bitcoin ABC with canonical sorting, and part do not.
