Certainly it will help them to be better in shape economically. Inter owns Goldman Sachs about 220m that have to be payed back until 2019, part of the agreement between Thohir and the chinese is that Suning pays those 220m back. Further 180m will go into the coffers of Moratti and Thohir, divided by the size of their share.
On the field though it's still reported that Inter has to sell before they can buy because of the agreement they have with Uefa. So no fresh resources for this transfer window, after that the new owners could find a new agreement with Uefa, that possibly allows more investments as part of a new business plan. There is some leeway for new owners in regards to FFP if you present a business plan to Uefa that seems feasible.
The other way to circumvent FFP are fake or inflated sponsorship the way PSG does it. PSG makes about 330m from sponsorships, more than anyone else in the world, without them their revenue would be less than Roma's. Totally fake, nothing you could get on a free market basis, but Uefa allows it.