Neath can clinch the title if they overcome Swansea at St Helen's in tonight's crunch clash.
But they will have to contain a marauding All Whites side who have enjoyed a rise in fortunes in recent weeks, culminating in their 24-20 victory over Cardiff last weekend.
The Welsh All Blacks have swept to the summit of the table and now stand on the brink of bagging the title.
But if they fail to win tonight there is a host of clubs ready to step into the breach. Cardiff, Llanelli and Newport all form part of the chasing pack and any one of them could steal the honours.
If Neath plunge to defeat tonight, Llanelli would scoop the title providing they can put Caerphilly and Cardiff to the sword in their final two games
But if the Scarlets slip up then Cardiff and Newport could spring to title glory. Cardiff face Bridgend tonight before completing their campaign on Friday against Llanelli.
Newport, who were clear favourites to clinch the title a few weeks ago, have been hit with a slide in fortunes. But the Black and Ambers have bounced back to give themselves an outside chance of ending up on top of the pile.
Their remaining fixtures see them lock horns with cup kings Pontypridd and Bridgend.
So the tension mounts as the chase for the championship looks poised to go right to the wire.
Roger Lewis talks to WRU TV at the announcement of a new £60 million Rugby Services Agreement (RSA) which provides a new and positive contractual relationship between the WRU and its four Regions for the next six years has been agreed.
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Having taken part in seven World Cups as a player and coach, Liza Burgess hopes to go out in style this afternoon when Wales take on Australia in the Play-off for seventh and eighth place in the Women's Rugby World Cup in Paris.
WRU Head of Rugby Josh Lewsey met with volunteers across the game earlier this week, championing their role in the sport. He was joined by Wales captain Sam Warburton for part of the day as volunteers took part in a 'Try Out' event for the 2015 Rugby World Cup
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Two weeks into the new pitch project at Millennium Stadium, Groundman Craig Campbell takes staff on a unique behind-the-scene tour of the works so far and National Squad Assistant Strength and Conditioning Coach John Ashby and Tour Guide Peter Owen describe what the revamp means for them.
Try-scorer Jenny Davies and fellow prop Megan York reveal to WRU TV's Graeme Gillespie their thoughts after Wales broke their drought in the Women's Rugby World Cup with a 35-3 win over South Africa in Paris.