I am suspecting those DM with refurb blue seats but aren't
refurbished with yellow seats will be sold. The rest will be
striders. Don't think will sell and DM3500 since about 90% of them
are on JIS services and more DM3500 will operate on them during
weekend...
Some spare DMs, despite refurbishments, may be sold after
completing its original lifespan as well.