Please take into account the fees LL actually charges. it's not just the 2,5 % that now will be 5%. if you sell an item on MP, you pay 5% to LL, then you want to convert your LS to US, where LL takes another 3.5 %. THEN you want to cash out where LL would take another 2.5% which is now going to be 5%. So doing some math here.. this is not "just" 5% . Not to mention other fees that apply , be it membership or wanting to rent to be even able to sell things inworld.
Don't forget if you are from another country, 3.5% plus the conversion rate. It's gonna be expensive for content creators. And if you live in the EU, then add VAT to that. Things can get expensive for creators outside the US.
I am a creator and I rely completely on my SL income to pay bills, rent, buy food, etc. As an example say I withdraw $1000 USD - at the moment my fee is around $25 USD, but this will increase to $50 USD each time I withdraw money. That is a food bill for a week just gone.
This will kill SL, we work hard, we make SL, and still we gotta pay LL more.