Hunch. The change la Repubblica says the government is studying is a higher starting level and protection for new residents, not the full EU delay Forza Italia wants.
The EU delay market resolves on the same journal: YES if the law published by 31 December lets a person who moves to another EU country delay the whole tax, with nothing paid at once and no guarantee. It is NO if any part paid at once or any guarantee stays for such moves, or there is no law with the tax by then, and ANSA and Reuters are the backups.
We looked for cases where a government put a new tax that only wealthy people pay into its yearly budget plan, and parliament had to pass the budget by 31 December. We found eight such budgets, for the years 2012 to 2026, in France, Italy and Spain. Four of them were French, and two were Italian. (Senate of France; Normattiva; Boletín Oficial del Estado)