To recap, here are the transfers. Firstly the religious verses.
The plate 2 Prepare transfer appears on a variety of plaque forms. The first below is attributed to Newbottle, the rest are currently homeless.
The argument for Newbottle... The black and yellow Praise Ye plaque was presented to the V&A in 1905 by a descendant of the owners of Newbottle High Pottery, along with a variety of other items. Some have questioned the breadth of objects donated, but archaeological digs of the High Pottery site have since confirmed the provenance of the most contentious items. The fact that Newbottle had two Prepare transfer plates suggests it was making plaques in considerable quantities.
The argument against Newbottle... Very little is known about the lustre items Newbottle produced, as they don't appear to have marked anything (all the plaques above are unmarked).
The argument for Moore's... Most of the 'group 2' transfers appear on brown-bordered plaques now attributed to Moore's.
The argument against Moore's... We have a very clear idea of what Moore's was doing in the 1840-50s, and there's no evidence they used any of the plaque forms above, which never appear with Moore transfers. Conversely, the group 2 transfers don't appear on Moore plaque forms until c1860. Furthermore, there's no evidence of Moore's decorating plaques with hand-painted flowers or green (or blue) corners. And, the Prepare plate 3 above doesn't appear on brown-bordered plaques, so apparently never made it to Moore's.
So it's looking like a one-horse race. If it were just the plaques above, we might say why not? And allow the new attribution to pass with little more thought. But attributing the group 2 transfers to Newbottle opens the doors for a an array of other plaques, which, until now, had no links with that pottery.
The non-religious group 2 transfers are set out below.
The May Peace and Plenty transfer appears on c1845-55 plaques of similar forms to those above, some of those with green or blue corners.
More research needs to be done, but the only realistic attribution for these plaques, with the information currently available, is Newbottle High Pottery.