寿命関連:

new："This wormhole has not yet begun its natural cycle of decay and should last at least another day."
24時間以上残存
long："This wormhole is beginning to decay, and probably won't last another day."
24時間以内に消滅
short："This wormhole is reaching the end of its natural lifetime."
4時間以内に消滅
imminent："This wormhole is on the verge of dissipating into the ether."
消滅間近

質量関連:

"This wormhole has not yet had its stability significantly disrupted by ships passing through it."
半分以上の質量が通過した
"This wormhole has had its stability reduced by ships passing through it, but not to a critical degree yet."
半分から1/10の質量が通過した
"This wormhole has had its stability critically disrupted by the mass of numerous ships passing through and is on the verge of collapse."
ほぼ消滅間近（通過すると消滅する可能性大）