It may not be the best decision to rebalance a Lyxor ETF. Since Amundi has taken over Lyxor, the product portfolio will be adjusted, see e.g. here: https://www.funds-europe.com/news/amundi-continues-with-lyxor-etf-mergers I would definitely inquire beforehand whether something is already known regarding your ETF.
@Patrick1909 I think Amundi has three options regarding the Lyxor ETFs: 1. continue under new name. 2. merge with Amundi product. 3. close down. Maybe you can make a forecast regarding your ETF by looking at the Amundi offering.