Can some gold paper stacked with gold ingots for grave-sweeping of deceased relatives be kept for next year?

Yes, some gold paper folded with gold ingots for grave-sweeping of deceased relatives can be reserved for next year. This practice does not violate any custom or regulation. Gold paper only symbolically represents money and wealth, and its use can be decided according to personal wishes and preferences. If you want to keep some gold paper as souvenirs or decorations, or as collectibles or investment goods, this is fine.