So this is just me quoting from the answer bullrun2020bro got from support, the link is above but once again:
https://bitcointalk.org/index.php?topic=5132044.msg62919217#msg62919217

In short, you can use still your EURO balance till that date, you will not be able to top it up in EURO, you can convert your balance to USDT (or anything else) and unless anything else happens the card should work as normal till it expires.

Again:
- better ask Binance support if you want to be 1001% sure,
- I have zero idea how the wallet funding works right now, it has been like almost one year since my last usage of the account and card
- if it's a small sum just convert it right now to USDT as the exchange fee is negligible or just spend it and throw the card in the trashcan (this last one is my personal opinion).